57811775112 has 256 divisors, whose sum is σ = 197880883200. Its totient is φ = 15229036800.

The previous prime is 57811775111. The next prime is 57811775137. The reversal of 57811775112 is 21157711875.

57811775112 is a `hidden beast` number, since 57 + 8 + 11 + 77 + 511 + 2 = 666.

It is a super-2 number, since 2×57811775112² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57811775111) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28519843 + ... + 28521869.

It is an arithmetic number, because the mean of its divisors is an integer number (772972200).

Almost surely, 2^57811775112 is an apocalyptic number.

57811775112 is a gapful number since it is divisible by the number (52) 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 57811775112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98940441600).

57811775112 is an abundant number, since it is smaller than the sum of its proper divisors (140069108088).

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

57811775112 is a wasteful number, since it uses less digits than its factorization.

57811775112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3513 (or 3503 counting only the distinct ones).

The product of its digits is 137200, while the sum is 45.

The spelling of 57811775112 in words is "fifty-seven billion, eight hundred eleven million, seven hundred seventy-five thousand, one hundred twelve".