791311583568 has 40 divisors (see below), whose sum is σ = 2230059918816. Its totient is φ = 239791388800.

The previous prime is 791311583567. The next prime is 791311583597. The reversal of 791311583568 is 865385113197.

It is a happy number.

It is a super-2 number, since 2×791311583568² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (791311583567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 749347563 + ... + 749348618.

Almost surely, 2^791311583568 is an apocalyptic number.

It is an amenable number.

791311583568 is an abundant number, since it is smaller than the sum of its proper divisors (1438748335248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

791311583568 is a wasteful number, since it uses less digits than its factorization.

791311583568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498696203 (or 1498696197 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 57.

The spelling of 791311583568 in words is "seven hundred ninety-one billion, three hundred eleven million, five hundred eighty-three thousand, five hundred sixty-eight".