79597231279 has 4 divisors (see below), whose sum is σ = 79650333000. Its totient is φ = 79544129560.

The previous prime is 79597231249. The next prime is 79597231291. The reversal of 79597231279 is 97213279597.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79597231279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79597231249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26548612 + ... + 26551609.

It is an arithmetic number, because the mean of its divisors is an integer number (19912583250).

Almost surely, 2^79597231279 is an apocalyptic number.

79597231279 is a deficient number, since it is larger than the sum of its proper divisors (53101721).

79597231279 is a wasteful number, since it uses less digits than its factorization.

79597231279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53101720.

The product of its digits is 15002820, while the sum is 61.

The spelling of 79597231279 in words is "seventy-nine billion, five hundred ninety-seven million, two hundred thirty-one thousand, two hundred seventy-nine".