69638479656 has 32 divisors (see below), whose sum is σ = 174690401760. Its totient is φ = 23133599552.

The previous prime is 69638479643. The next prime is 69638479667. The reversal of 69638479656 is 65697483696.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4944510 + ... + 4958573.

It is an arithmetic number, because the mean of its divisors is an integer number (5459075055).

Almost surely, 2^69638479656 is an apocalyptic number.

It is an amenable number.

69638479656 is an abundant number, since it is smaller than the sum of its proper divisors (105051922104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69638479656 is a wasteful number, since it uses less digits than its factorization.

69638479656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9903385 (or 9903381 counting only the distinct ones).

The product of its digits is 352719360, while the sum is 69.

The spelling of 69638479656 in words is "sixty-nine billion, six hundred thirty-eight million, four hundred seventy-nine thousand, six hundred fifty-six".