56435374440 has 48 divisors (see below), whose sum is σ = 183414968100. Its totient is φ = 15049433088.

The previous prime is 56435374423. The next prime is 56435374441. The reversal of 56435374440 is 4447353465.

56435374440 is a `hidden beast` number, since 56 + 43 + 53 + 74 + 440 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 55848087684 + 587286756 = 236322^2 + 24234^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (56435374441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78382105 + ... + 78382824.

Almost surely, 2^56435374440 is an apocalyptic number.

It is an amenable number.

56435374440 is an abundant number, since it is smaller than the sum of its proper divisors (126979593660).

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

56435374440 is a wasteful number, since it uses less digits than its factorization.

56435374440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156764946 (or 156764939 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 45.

The spelling of 56435374440 in words is "fifty-six billion, four hundred thirty-five million, three hundred seventy-four thousand, four hundred forty".