79397866975 has 24 divisors (see below), whose sum is σ = 112530663648. Its totient is φ = 54438182400.

The previous prime is 79397866927. The next prime is 79397866987. The reversal of 79397866975 is 57966879397.

It is not a de Polignac number, because 79397866975 - 2¹¹ = 79397864927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2020515 + ... + 2059435.

It is an arithmetic number, because the mean of its divisors is an integer number (4688777652).

Almost surely, 2^79397866975 is an apocalyptic number.

79397866975 is a deficient number, since it is larger than the sum of its proper divisors (33132796673).

79397866975 is a wasteful number, since it uses less digits than its factorization.

79397866975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50595 (or 50590 counting only the distinct ones).

The product of its digits is 1080203040, while the sum is 76.

It can be divided in two parts, 7939786 and 6975, that added together give a square (7946761 = 2819²).

The spelling of 79397866975 in words is "seventy-nine billion, three hundred ninety-seven million, eight hundred sixty-six thousand, nine hundred seventy-five".