791323973931 has 16 divisors (see below), whose sum is σ = 1068017591808. Its totient is φ = 521114076000.

The previous prime is 791323973911. The next prime is 791323973939. The reversal of 791323973931 is 139379323197.

It is a happy number.

It is not a de Polignac number, because 791323973931 - 2⁵ = 791323973899 is a prime.

It is a super-2 number, since 2×791323973931² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (791323973939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2899141 + ... + 3160326.

It is an arithmetic number, because the mean of its divisors is an integer number (66751099488).

Almost surely, 2^791323973931 is an apocalyptic number.

791323973931 is a deficient number, since it is larger than the sum of its proper divisors (276693617877).

791323973931 is a wasteful number, since it uses less digits than its factorization.

791323973931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6060002.

The product of its digits is 5786802, while the sum is 57.

The spelling of 791323973931 in words is "seven hundred ninety-one billion, three hundred twenty-three million, nine hundred seventy-three thousand, nine hundred thirty-one".