79925297599 has 64 divisors (see below), whose sum is σ = 96598656000. Its totient is φ = 64728668160.

The previous prime is 79925297591. The next prime is 79925297603. The reversal of 79925297599 is 99579252997.

It is a cyclic number.

It is not a de Polignac number, because 79925297599 - 2³ = 79925297591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79925297591) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 331640119 + ... + 331640359.

It is an arithmetic number, because the mean of its divisors is an integer number (1509354000).

Almost surely, 2^79925297599 is an apocalyptic number.

79925297599 is a deficient number, since it is larger than the sum of its proper divisors (16673358401).

79925297599 is a wasteful number, since it uses less digits than its factorization.

79925297599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608.

The product of its digits is 289340100, while the sum is 73.

The spelling of 79925297599 in words is "seventy-nine billion, nine hundred twenty-five million, two hundred ninety-seven thousand, five hundred ninety-nine".