557918432844 has 24 divisors (see below), whose sum is σ = 1304146873008. Its totient is φ = 185638925760.

The previous prime is 557918432843. The next prime is 557918432881. The reversal of 557918432844 is 448234819755.

It is a super-2 number, since 2×557918432844² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (557918432843) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 41728687 + ... + 41742054.

It is an arithmetic number, because the mean of its divisors is an integer number (54339453042).

Almost surely, 2^557918432844 is an apocalyptic number.

It is an amenable number.

557918432844 is an abundant number, since it is smaller than the sum of its proper divisors (746228440164).

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

557918432844 is a wasteful number, since it uses less digits than its factorization.

557918432844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83471305 (or 83471303 counting only the distinct ones).

The product of its digits is 38707200, while the sum is 60.

The spelling of 557918432844 in words is "five hundred fifty-seven billion, nine hundred eighteen million, four hundred thirty-two thousand, eight hundred forty-four".