79518938253936 has 160 divisors (see below), whose sum is σ = 214631078356800. Its totient is φ = 25336606310400.

The previous prime is 79518938253841. The next prime is 79518938253943. The reversal of 79518938253936 is 63935283981597.

It is a super-2 number, since 2×79518938253936² (a number of 29 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (78) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2233848490 + ... + 2233884086.

It is an arithmetic number, because the mean of its divisors is an integer number (1341444239730).

Almost surely, 2^{79518938253936} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79518938253936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107315539178400).

79518938253936 is an abundant number, since it is smaller than the sum of its proper divisors (135112140102864).

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

79518938253936 is a wasteful number, since it uses less digits than its factorization.

79518938253936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51627 (or 51621 counting only the distinct ones).

The product of its digits is 2645395200, while the sum is 78.

The spelling of 79518938253936 in words is "seventy-nine trillion, five hundred eighteen billion, nine hundred thirty-eight million, two hundred fifty-three thousand, nine hundred thirty-six".