79520422784 has 64 divisors (see below), whose sum is σ = 175750732800. Its totient is φ = 35532971520.

The previous prime is 79520422777. The next prime is 79520422859. The reversal of 79520422784 is 48722402597.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×79520422784² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395552 + ... + 561695.

It is an arithmetic number, because the mean of its divisors is an integer number (2746105200).

Almost surely, 2^79520422784 is an apocalyptic number.

It is an amenable number.

79520422784 is an abundant number, since it is smaller than the sum of its proper divisors (96230310016).

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

79520422784 is a wasteful number, since it uses less digits than its factorization.

79520422784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957331 (or 957319 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 50.

The spelling of 79520422784 in words is "seventy-nine billion, five hundred twenty million, four hundred twenty-two thousand, seven hundred eighty-four".