56421121184 has 24 divisors (see below), whose sum is σ = 111085822260. Its totient is φ = 28208848896.

The previous prime is 56421121147. The next prime is 56421121213. The reversal of 56421121184 is 48112112465.

It can be written as a sum of positive squares in 2 ways, for example, as 56250557584 + 170563600 = 237172^2 + 13060^2 .

It is a super-2 number, since 2×56421121184² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 607982 + ... + 694610.

Almost surely, 2^56421121184 is an apocalyptic number.

It is an amenable number.

56421121184 is a deficient number, since it is larger than the sum of its proper divisors (54664701076).

56421121184 is a wasteful number, since it uses less digits than its factorization.

56421121184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106992 (or 106984 counting only the distinct ones).

The product of its digits is 15360, while the sum is 35.

The spelling of 56421121184 in words is "fifty-six billion, four hundred twenty-one million, one hundred twenty-one thousand, one hundred eighty-four".