79119851520 has 112 divisors (see below), whose sum is σ = 253168464960. Its totient is φ = 21098594304.

The previous prime is 79119851507. The next prime is 79119851593. The reversal of 79119851520 is 2515891197.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 79119851520.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199060 + ... + 444819.

Almost surely, 2^79119851520 is an apocalyptic number.

It is an amenable number.

79119851520 is an abundant number, since it is smaller than the sum of its proper divisors (174048613440).

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

79119851520 is an equidigital number, since it uses as much as digits as its factorization.

79119851520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643913 (or 643889 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 48.

The spelling of 79119851520 in words is "seventy-nine billion, one hundred nineteen million, eight hundred fifty-one thousand, five hundred twenty".