56436436380 has 48 divisors (see below), whose sum is σ = 158078551680. Its totient is φ = 15044332608.

The previous prime is 56436436379. The next prime is 56436436447. The reversal of 56436436380 is 8363463465.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2307 + ... + 335973.

It is an arithmetic number, because the mean of its divisors is an integer number (3293303160).

Almost surely, 2^56436436380 is an apocalyptic number.

It is an amenable number.

56436436380 is an abundant number, since it is smaller than the sum of its proper divisors (101642115300).

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

56436436380 is a wasteful number, since it uses less digits than its factorization.

56436436380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336498 (or 336496 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 48.

The spelling of 56436436380 in words is "fifty-six billion, four hundred thirty-six million, four hundred thirty-six thousand, three hundred eighty".