79877955894 has 64 divisors (see below), whose sum is σ = 175027184640. Its totient is φ = 24101792000.

The previous prime is 79877955889. The next prime is 79877955923. The reversal of 79877955894 is 49855977897.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15849427 + ... + 15854465.

It is an arithmetic number, because the mean of its divisors is an integer number (2734799760).

Almost surely, 2^79877955894 is an apocalyptic number.

79877955894 is an abundant number, since it is smaller than the sum of its proper divisors (95149228746).

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

79877955894 is a wasteful number, since it uses less digits than its factorization.

79877955894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6037.

The product of its digits is 1600300800, while the sum is 78.

The spelling of 79877955894 in words is "seventy-nine billion, eight hundred seventy-seven million, nine hundred fifty-five thousand, eight hundred ninety-four".