396880570731 has 16 divisors (see below), whose sum is σ = 536739286400. Its totient is φ = 260808724800.

The previous prime is 396880570727. The next prime is 396880570733. The reversal of 396880570731 is 137075088693.

It is not a de Polignac number, because 396880570731 - 2² = 396880570727 is a prime.

It is a super-2 number, since 2×396880570731² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396880570733) 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, 161245 + ... + 905406.

It is an arithmetic number, because the mean of its divisors is an integer number (33546205400).

Almost surely, 2^396880570731 is an apocalyptic number.

396880570731 is a deficient number, since it is larger than the sum of its proper divisors (139858715669).

396880570731 is a wasteful number, since it uses less digits than its factorization.

396880570731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068426.

The product of its (nonzero) digits is 7620480, while the sum is 57.

The spelling of 396880570731 in words is "three hundred ninety-six billion, eight hundred eighty million, five hundred seventy thousand, seven hundred thirty-one".