57312121473 has 6 divisors (see below), whose sum is σ = 82784175474. Its totient is φ = 38208080976.

The previous prime is 57312121457. The next prime is 57312121481. The reversal of 57312121473 is 37412121375.

57312121473 is a `hidden beast` number, since 57 + 3 + 12 + 121 + 473 = 666.

It can be written as a sum of positive squares in only one way, i.e., 36730489104 + 20581632369 = 191652^2 + 143463^2 .

It is not a de Polignac number, because 57312121473 - 2⁴ = 57312121457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57312122473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3184006740 + ... + 3184006757.

It is an arithmetic number, because the mean of its divisors is an integer number (13797362579).

Almost surely, 2^57312121473 is an apocalyptic number.

It is an amenable number.

57312121473 is a deficient number, since it is larger than the sum of its proper divisors (25472054001).

57312121473 is a wasteful number, since it uses less digits than its factorization.

57312121473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6368013503 (or 6368013500 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The spelling of 57312121473 in words is "fifty-seven billion, three hundred twelve million, one hundred twenty-one thousand, four hundred seventy-three".