79581179788 has 48 divisors (see below), whose sum is σ = 153538729344. Its totient is φ = 35791424640.

The previous prime is 79581179779. The next prime is 79581179827. The reversal of 79581179788 is 88797118597.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1829095 + ... + 1872097.

It is an arithmetic number, because the mean of its divisors is an integer number (3198723528).

Almost surely, 2^79581179788 is an apocalyptic number.

It is an amenable number.

79581179788 is a deficient number, since it is larger than the sum of its proper divisors (73957549556).

79581179788 is a wasteful number, since it uses less digits than its factorization.

79581179788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43462 (or 43460 counting only the distinct ones).

The product of its digits is 71124480, while the sum is 70.

The spelling of 79581179788 in words is "seventy-nine billion, five hundred eighty-one million, one hundred seventy-nine thousand, seven hundred eighty-eight".