56405426316 has 12 divisors (see below), whose sum is σ = 131612661432. Its totient is φ = 18801808768.

The previous prime is 56405426299. The next prime is 56405426347. The reversal of 56405426316 is 61362450465.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2350226085 + ... + 2350226108.

It is an arithmetic number, because the mean of its divisors is an integer number (10967721786).

Almost surely, 2^56405426316 is an apocalyptic number.

It is an amenable number.

56405426316 is an abundant number, since it is smaller than the sum of its proper divisors (75207235116).

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

56405426316 is a wasteful number, since it uses less digits than its factorization.

56405426316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4700452200 (or 4700452198 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 56405426316 in words is "fifty-six billion, four hundred five million, four hundred twenty-six thousand, three hundred sixteen".