400475922864 has 40 divisors (see below), whose sum is σ = 1054082860272. Its totient is φ = 130973256960.

The previous prime is 400475922863. The next prime is 400475922871. The reversal of 400475922864 is 468229574004.

400475922864 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (400475922863) 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, 78707347 + ... + 78712434.

Almost surely, 2^400475922864 is an apocalyptic number.

It is an amenable number.

400475922864 is an abundant number, since it is smaller than the sum of its proper divisors (653606937408).

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

400475922864 is a wasteful number, since it uses less digits than its factorization.

400475922864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157419845 (or 157419839 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 51.

The spelling of 400475922864 in words is "four hundred billion, four hundred seventy-five million, nine hundred twenty-two thousand, eight hundred sixty-four".