57031861216 has 72 divisors (see below), whose sum is σ = 127672833960. Its totient is φ = 25029607680.

The previous prime is 57031861213. The next prime is 57031861231. The reversal of 57031861216 is 61216813075.

It is a happy number.

57031861216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×57031861216² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57031861213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141666 + ... + 366241.

It is an arithmetic number, because the mean of its divisors is an integer number (1773233805).

Almost surely, 2^57031861216 is an apocalyptic number.

It is an amenable number.

57031861216 is an abundant number, since it is smaller than the sum of its proper divisors (70640972744).

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

57031861216 is a wasteful number, since it uses less digits than its factorization.

57031861216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507968 (or 507949 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 57031861216 in words is "fifty-seven billion, thirty-one million, eight hundred sixty-one thousand, two hundred sixteen".