79091897024 has 56 divisors (see below), whose sum is σ = 179417959680. Its totient is φ = 33887298816.

The previous prime is 79091897023. The next prime is 79091897077. The reversal of 79091897024 is 42079819097.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (56).

It is not an unprimeable number, because it can be changed into a prime (79091897023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1773107 + ... + 1817165.

Almost surely, 2^79091897024 is an apocalyptic number.

It is an amenable number.

79091897024 is an abundant number, since it is smaller than the sum of its proper divisors (100326062656).

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

79091897024 is a wasteful number, since it uses less digits than its factorization.

79091897024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48085 (or 48075 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 56.

The spelling of 79091897024 in words is "seventy-nine billion, ninety-one million, eight hundred ninety-seven thousand, twenty-four".