56144173764978 has 48 divisors (see below), whose sum is σ = 131076300078360. Its totient is φ = 17265473955072.

The previous prime is 56144173764947. The next prime is 56144173765021. The reversal of 56144173764978 is 87946737144165.

56144173764978 is a `hidden beast` number, since 5 + 6 + 1 + 441 + 7 + 3 + 76 + 49 + 78 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 40160065816809 + 15984107948169 = 6337197^2 + 3998013^2 .

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, 66639051 + ... + 67476302.

Almost surely, 2^{56144173764978} is an apocalyptic number.

56144173764978 is an abundant number, since it is smaller than the sum of its proper divisors (74932126313382).

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

56144173764978 is a wasteful number, since it uses less digits than its factorization.

56144173764978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134117163 (or 134117160 counting only the distinct ones).

The product of its digits is 853493760, while the sum is 72.

The spelling of 56144173764978 in words is "fifty-six trillion, one hundred forty-four billion, one hundred seventy-three million, seven hundred sixty-four thousand, nine hundred seventy-eight".