400812005692 has 24 divisors (see below), whose sum is σ = 802836792800. Its totient is φ = 171516692160.

The previous prime is 400812005687. The next prime is 400812005731. The reversal of 400812005692 is 296500218004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10809567 + ... + 10846582.

Almost surely, 2^400812005692 is an apocalyptic number.

It is an amenable number.

400812005692 is an abundant number, since it is smaller than the sum of its proper divisors (402024787108).

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

400812005692 is a wasteful number, since it uses less digits than its factorization.

400812005692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21656821 (or 21656819 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 400812005692 in words is "four hundred billion, eight hundred twelve million, five thousand, six hundred ninety-two".