Sorry but I don't know how to deal big number.
Here's another CODY problem that deals with something similar:
Sums with Excluded Digits
Create an 'arrow-head" matrix
Center of mass
How many days does the cat take to climb out of the hole?
Points on a Sphere
There are 10 types of people in the world
Matrix of Multiplication Facts
Fun with a compass
Pandigital Factors (Based on Euler 491)
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