79561027392 has 672 divisors, whose sum is σ = 280201420800. Its totient is φ = 19462840320.

The previous prime is 79561027391. The next prime is 79561027451. The reversal of 79561027392 is 29372016597.

It is a tau number, because it is divible by the number of its divisors (672).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79561027391) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 332891209 + ... + 332891447.

It is an arithmetic number, because the mean of its divisors is an integer number (416966400).

Almost surely, 2^79561027392 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 79561027392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140100710400).

79561027392 is an abundant number, since it is smaller than the sum of its proper divisors (200640393408).

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

79561027392 is a wasteful number, since it uses less digits than its factorization.

79561027392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 51.

The spelling of 79561027392 in words is "seventy-nine billion, five hundred sixty-one million, twenty-seven thousand, three hundred ninety-two".