57516112121873 has 2 divisors, whose sum is σ = 57516112121874. Its totient is φ = 57516112121872.

The previous prime is 57516112121849. The next prime is 57516112121981. The reversal of 57516112121873 is 37812121161575.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49931634677824 + 7584477444049 = 7066232^2 + 2753993^2 .

It is a cyclic number.

It is not a de Polignac number, because 57516112121873 - 2¹⁴ = 57516112105489 is a prime.

It is not a weakly prime, because it can be changed into another prime (57516112121803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28758056060936 + 28758056060937.

It is an arithmetic number, because the mean of its divisors is an integer number (28758056060937).

Almost surely, 2^{57516112121873} is an apocalyptic number.

It is an amenable number.

57516112121873 is a deficient number, since it is larger than the sum of its proper divisors (1).

57516112121873 is an equidigital number, since it uses as much as digits as its factorization.

57516112121873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 705600, while the sum is 50.

The spelling of 57516112121873 in words is "fifty-seven trillion, five hundred sixteen billion, one hundred twelve million, one hundred twenty-one thousand, eight hundred seventy-three".