79364792565 has 48 divisors (see below), whose sum is σ = 148496699520. Its totient is φ = 39091409280.

The previous prime is 79364792557. The next prime is 79364792641. The reversal of 79364792565 is 56529746397.

79364792565 is a `hidden beast` number, since 7 + 9 + 3 + 64 + 7 + 9 + 2 + 565 = 666.

It is not a de Polignac number, because 79364792565 - 2³ = 79364792557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1292071 + ... + 1352100.

It is an arithmetic number, because the mean of its divisors is an integer number (3093681240).

Almost surely, 2^79364792565 is an apocalyptic number.

It is an amenable number.

79364792565 is a deficient number, since it is larger than the sum of its proper divisors (69131906955).

79364792565 is a wasteful number, since it uses less digits than its factorization.

79364792565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2644234 (or 2644231 counting only the distinct ones).

The product of its digits is 85730400, while the sum is 63.

The spelling of 79364792565 in words is "seventy-nine billion, three hundred sixty-four million, seven hundred ninety-two thousand, five hundred sixty-five".