57516112121477 has 2 divisors, whose sum is σ = 57516112121478. Its totient is φ = 57516112121476.

The previous prime is 57516112121453. The next prime is 57516112121513. The reversal of 57516112121477 is 77412121161575.

It is a happy number.

57516112121477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39829049172676 + 17687062948801 = 6311026^2 + 4205599^2 .

It is a cyclic number.

It is not a de Polignac number, because 57516112121477 - 2³⁰ = 57515038379653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57516112121417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28758056060738 + 28758056060739.

It is an arithmetic number, because the mean of its divisors is an integer number (28758056060739).

Almost surely, 2^{57516112121477} is an apocalyptic number.

It is an amenable number.

57516112121477 is a deficient number, since it is larger than the sum of its proper divisors (1).

57516112121477 is an equidigital number, since it uses as much as digits as its factorization.

57516112121477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 823200, while the sum is 50.

The spelling of 57516112121477 in words is "fifty-seven trillion, five hundred sixteen billion, one hundred twelve million, one hundred twenty-one thousand, four hundred seventy-seven".