57323372928 has 256 divisors, whose sum is σ = 163991520000. Its totient is φ = 17705705472.

The previous prime is 57323372863. The next prime is 57323372941. The reversal of 57323372928 is 82927332375.

It is a Cunningham number, because it is equal to 239423²-1.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28251018 + ... + 28253046.

It is an arithmetic number, because the mean of its divisors is an integer number (640591875).

Almost surely, 2^57323372928 is an apocalyptic number.

57323372928 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57323372928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81995760000).

57323372928 is an abundant number, since it is smaller than the sum of its proper divisors (106668147072).

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

57323372928 is a wasteful number, since it uses less digits than its factorization.

57323372928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2177 (or 2165 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 51.

The spelling of 57323372928 in words is "fifty-seven billion, three hundred twenty-three million, three hundred seventy-two thousand, nine hundred twenty-eight".