56400091992 has 96 divisors (see below), whose sum is σ = 161004851280. Its totient is φ = 18491794560.

The previous prime is 56400091981. The next prime is 56400092009. The reversal of 56400091992 is 29919000465.

56400091992 is a `hidden beast` number, since 56 + 400 + 0 + 9 + 199 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119223 + ... + 356390.

Almost surely, 2^56400091992 is an apocalyptic number.

It is an amenable number.

56400091992 is an abundant number, since it is smaller than the sum of its proper divisors (104604759288).

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

56400091992 is a wasteful number, since it uses less digits than its factorization.

56400091992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475695 (or 475679 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The spelling of 56400091992 in words is "fifty-six billion, four hundred million, ninety-one thousand, nine hundred ninety-two".