79331868864 has 84 divisors (see below), whose sum is σ = 234725707840. Its totient is φ = 25590919680.

The previous prime is 79331868859. The next prime is 79331868883. The reversal of 79331868864 is 46886813397.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2203579 + ... + 2239290.

Almost surely, 2^79331868864 is an apocalyptic number.

It is an amenable number.

79331868864 is an abundant number, since it is smaller than the sum of its proper divisors (155393838976).

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

79331868864 is a wasteful number, since it uses less digits than its factorization.

79331868864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4442918 (or 4442905 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 63.

The spelling of 79331868864 in words is "seventy-nine billion, three hundred thirty-one million, eight hundred sixty-eight thousand, eight hundred sixty-four".