79857390364 has 24 divisors (see below), whose sum is σ = 147645368640. Its totient is φ = 37731589056.

The previous prime is 79857390343. The next prime is 79857390407. The reversal of 79857390364 is 46309375897.

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

It is a congruent 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, 7318227 + ... + 7329130.

It is an arithmetic number, because the mean of its divisors is an integer number (6151890360).

Almost surely, 2^79857390364 is an apocalyptic number.

It is an amenable number.

79857390364 is a deficient number, since it is larger than the sum of its proper divisors (67787978276).

79857390364 is a wasteful number, since it uses less digits than its factorization.

79857390364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14647437 (or 14647435 counting only the distinct ones).

The product of its (nonzero) digits is 34292160, while the sum is 61.

The spelling of 79857390364 in words is "seventy-nine billion, eight hundred fifty-seven million, three hundred ninety thousand, three hundred sixty-four".