79992808900 has 27 divisors (see below), whose sum is σ = 173590532941. Its totient is φ = 31995992240.

The previous prime is 79992808873. The next prime is 79992808943. The reversal of 79992808900 is 980829997.

The square root of 79992808900 is 282830.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 28797411204 + 51195397696 = 169698^2 + 226264^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2814159 + ... + 2842441.

Almost surely, 2^79992808900 is an apocalyptic number.

79992808900 is the 282830-th square number.

It is an amenable number.

79992808900 is an abundant number, since it is smaller than the sum of its proper divisors (93597724041).

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

79992808900 is an frugal number, since it uses more digits than its factorization.

79992808900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56580 (or 28290 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 61.

The spelling of 79992808900 in words is "seventy-nine billion, nine hundred ninety-two million, eight hundred eight thousand, nine hundred".