79818522536 has 64 divisors (see below), whose sum is σ = 160237958400. Its totient is φ = 37142074368.

The previous prime is 79818522523. The next prime is 79818522551. The reversal of 79818522536 is 63522581897.

It is a happy number.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

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, 10404110 + ... + 10411778.

It is an arithmetic number, because the mean of its divisors is an integer number (2503718100).

Almost surely, 2^79818522536 is an apocalyptic number.

It is an amenable number.

79818522536 is an abundant number, since it is smaller than the sum of its proper divisors (80419435864).

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

79818522536 is a wasteful number, since it uses less digits than its factorization.

79818522536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8538 (or 8534 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 56.

The spelling of 79818522536 in words is "seventy-nine billion, eight hundred eighteen million, five hundred twenty-two thousand, five hundred thirty-six".