56430811538840 has 32 divisors (see below), whose sum is σ = 127082996005680. Its totient is φ = 22552116607872.

The previous prime is 56430811538831. The next prime is 56430811538939. The reversal of 56430811538840 is 4883511803465.

It is a super-3 number, since 3×56430811538840³ (a number of 42 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 631455002 + ... + 631544361.

Almost surely, 2^{56430811538840} is an apocalyptic number.

It is an amenable number.

56430811538840 is an abundant number, since it is smaller than the sum of its proper divisors (70652184466840).

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

56430811538840 is a wasteful number, since it uses less digits than its factorization.

56430811538840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263000491 (or 1263000487 counting only the distinct ones).

The product of its (nonzero) digits is 11059200, while the sum is 56.

The spelling of 56430811538840 in words is "fifty-six trillion, four hundred thirty billion, eight hundred eleven million, five hundred thirty-eight thousand, eight hundred forty".