79188806828 has 6 divisors (see below), whose sum is σ = 138580411956. Its totient is φ = 39594403412.

The previous prime is 79188806783. The next prime is 79188806861. The reversal of 79188806828 is 82860888197.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9898600850 + ... + 9898600857.

It is an arithmetic number, because the mean of its divisors is an integer number (23096735326).

Almost surely, 2^79188806828 is an apocalyptic number.

It is an amenable number.

79188806828 is a deficient number, since it is larger than the sum of its proper divisors (59391605128).

79188806828 is a wasteful number, since it uses less digits than its factorization.

79188806828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19797201711 (or 19797201709 counting only the distinct ones).

The product of its (nonzero) digits is 24772608, while the sum is 65.

The spelling of 79188806828 in words is "seventy-nine billion, one hundred eighty-eight million, eight hundred six thousand, eight hundred twenty-eight".