557091872238 has 16 divisors (see below), whose sum is σ = 1215473175936. Its totient is φ = 168815718840.

The previous prime is 557091872231. The next prime is 557091872251. The reversal of 557091872238 is 832278190755.

It is a super-2 number, since 2×557091872238² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557091872231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4220392906 + ... + 4220393037.

It is an arithmetic number, because the mean of its divisors is an integer number (75967073496).

Almost surely, 2^557091872238 is an apocalyptic number.

557091872238 is an abundant number, since it is smaller than the sum of its proper divisors (658381303698).

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

557091872238 is a wasteful number, since it uses less digits than its factorization.

557091872238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8440785959.

The product of its (nonzero) digits is 8467200, while the sum is 57.

The spelling of 557091872238 in words is "five hundred fifty-seven billion, ninety-one million, eight hundred seventy-two thousand, two hundred thirty-eight".