Are you wondering how many place values are in 486!
or are you wondering how many number 0's are in 486!?
I'm not sure if there is a formula to figure this out. I'm sure someone else will post an answer if there is.
I just used calculator soup to find the answer to this. It came out as about 2.402100606 E+1096, so there is 1097 place values in this number!
The actual number was:
2402100606040589897197638086812797478301774839698665408613794022064502171
2518840982308751981712465229369425164366582252171023331162043658051984062
4955161430625609777000662996493304475232844897531215829462618230008773245
9562592399661153941811053144742421950056894832360367109370125276844433536
9987691048876820773666915202799969234335595330244478731901731737649718146
7399043171966919599315049217413943054852886295473386999403534138407124356
68282206351234254228296347122352788666816045729459170141461529693975081529
76877727071387333558312656416000708181152244328938858913125585365193365947
23189794317070888603528608142248745385164063445311629158230374380269703037
12887468317198282228519107731747348865547753641363534630126790776107563531
23585248202964912004294789482833376070012019153790713089829434762858788417
63101185921443105189669526251030144425248142842777321009919321887669526986
29066830153676333357763330510392498169225574493952371758993101732461354082
15825359031542575267840000000000000000000000000000000000000000000000000000
0000000000000000000000000000000000000000000000000000000000000000000
If you really want you can count out all these zeros, but that seems rather time consuming!