57312039727 has 2 divisors, whose sum is σ = 57312039728. Its totient is φ = 57312039726.

The previous prime is 57312039691. The next prime is 57312039737. The reversal of 57312039727 is 72793021375.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57312039727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57312039737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28656019863 + 28656019864.

It is an arithmetic number, because the mean of its divisors is an integer number (28656019864).

Almost surely, 2^57312039727 is an apocalyptic number.

57312039727 is a deficient number, since it is larger than the sum of its proper divisors (1).

57312039727 is an equidigital number, since it uses as much as digits as its factorization.

57312039727 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 555660, while the sum is 46.

The spelling of 57312039727 in words is "fifty-seven billion, three hundred twelve million, thirty-nine thousand, seven hundred twenty-seven".