So he had... 86,423,688,431 candy bars
Multiply 5,422 and 9,865 to find out how many he ate.
This is because he added 9,865 every 1 candy bar he ate.
You will get 53,488,030
Now ADD 86,423,688,431 and 53,488,030 to get 86,477,176,461
Your final answer: 86,477,176,461