397851682932 has 96 divisors (see below), whose sum is σ = 1139129174400. Its totient is φ = 120561086880.

The previous prime is 397851682913. The next prime is 397851682933. The reversal of 397851682932 is 239286158793.

397851682932 is a `hidden beast` number, since 3 + 9 + 7 + 8 + 516 + 82 + 9 + 32 = 666.

397851682932 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×397851682932² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 397851682932.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397851682933) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1971007 + ... + 2163462.

It is an arithmetic number, because the mean of its divisors is an integer number (11865928900).

Almost surely, 2^397851682932 is an apocalyptic number.

It is an amenable number.

397851682932 is an abundant number, since it is smaller than the sum of its proper divisors (741277491468).

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

397851682932 is a wasteful number, since it uses less digits than its factorization.

397851682932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4134505 (or 4134485 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 63.

The spelling of 397851682932 in words is "three hundred ninety-seven billion, eight hundred fifty-one million, six hundred eighty-two thousand, nine hundred thirty-two".