57122813012 has 12 divisors (see below), whose sum is σ = 100517216436. Its totient is φ = 28403608320.

The previous prime is 57122813009. The next prime is 57122813039. The reversal of 57122813012 is 21031822175.

It can be written as a sum of positive squares in 2 ways, for example, as 13343946256 + 43778866756 = 115516^2 + 209234^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 57122813012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39448733 + ... + 39450180.

It is an arithmetic number, because the mean of its divisors is an integer number (8376434703).

Almost surely, 2^57122813012 is an apocalyptic number.

It is an amenable number.

57122813012 is a deficient number, since it is larger than the sum of its proper divisors (43394403424).

57122813012 is a wasteful number, since it uses less digits than its factorization.

57122813012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78899098 (or 78899096 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

The spelling of 57122813012 in words is "fifty-seven billion, one hundred twenty-two million, eight hundred thirteen thousand, twelve".