79565756928 has 160 divisors (see below), whose sum is σ = 252782678016. Its totient is φ = 21744611328.

The previous prime is 79565756911. The next prime is 79565756983. The reversal of 79565756928 is 82965756597.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86425 + ... + 408167.

Almost surely, 2^79565756928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79565756928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126391339008).

79565756928 is an abundant number, since it is smaller than the sum of its proper divisors (173216921088).

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

79565756928 is a wasteful number, since it uses less digits than its factorization.

79565756928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321794 (or 321778 counting only the distinct ones).

The product of its digits is 285768000, while the sum is 69.

The spelling of 79565756928 in words is "seventy-nine billion, five hundred sixty-five million, seven hundred fifty-six thousand, nine hundred twenty-eight".