79909359404 has 12 divisors (see below), whose sum is σ = 159818718864. Its totient is φ = 34246868304.

The previous prime is 79909359403. The next prime is 79909359427. The reversal of 79909359404 is 40495390997.

79909359404 is an admirable number.

It is a hoax number, since the sum of its digits (59) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (79909359403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1426952819 + ... + 1426952874.

It is an arithmetic number, because the mean of its divisors is an integer number (13318226572).

Almost surely, 2^79909359404 is an apocalyptic number.

It is an amenable number.

79909359404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

79909359404 is a wasteful number, since it uses less digits than its factorization.

79909359404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2853905704 (or 2853905702 counting only the distinct ones).

The product of its (nonzero) digits is 11022480, while the sum is 59.

The spelling of 79909359404 in words is "seventy-nine billion, nine hundred nine million, three hundred fifty-nine thousand, four hundred four".