400107851008 has 36 divisors (see below), whose sum is σ = 813721728708. Its totient is φ = 196279316480.

The previous prime is 400107850999. The next prime is 400107851071. The reversal of 400107851008 is 800158701004.

It can be written as a sum of positive squares in 2 ways, for example, as 352778978304 + 47328872704 = 593952^2 + 217552^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14730973 + ... + 14758108.

It is an arithmetic number, because the mean of its divisors is an integer number (22603381353).

Almost surely, 2^400107851008 is an apocalyptic number.

It is an amenable number.

400107851008 is an abundant number, since it is smaller than the sum of its proper divisors (413613877700).

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

400107851008 is an equidigital number, since it uses as much as digits as its factorization.

400107851008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29489150 (or 29489136 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 34.

The spelling of 400107851008 in words is "four hundred billion, one hundred seven million, eight hundred fifty-one thousand, eight".