791657298872 has 32 divisors (see below), whose sum is σ = 1622811682800. Its totient is φ = 359063635200.

The previous prime is 791657298823. The next prime is 791657298877. The reversal of 791657298872 is 278892756197.

It is a super-2 number, since 2×791657298872² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 791657298796 and 791657298805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (791657298877) 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, 9716597 + ... + 9797732.

Almost surely, 2^791657298872 is an apocalyptic number.

It is an amenable number.

791657298872 is an abundant number, since it is smaller than the sum of its proper divisors (831154383928).

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

791657298872 is a wasteful number, since it uses less digits than its factorization.

791657298872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19514807 (or 19514803 counting only the distinct ones).

The product of its digits is 213373440, while the sum is 71.

The spelling of 791657298872 in words is "seven hundred ninety-one billion, six hundred fifty-seven million, two hundred ninety-eight thousand, eight hundred seventy-two".