57708018913 has 2 divisors, whose sum is σ = 57708018914. Its totient is φ = 57708018912.

The previous prime is 57708018839. The next prime is 57708018931. The reversal of 57708018913 is 31981080775.

Together with next prime (57708018931) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33711530449 + 23996488464 = 183607^2 + 154908^2 .

It is a cyclic number.

It is not a de Polignac number, because 57708018913 - 2¹⁷ = 57707887841 is a prime.

It is not a weakly prime, because it can be changed into another prime (57708018013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28854009456 + 28854009457.

It is an arithmetic number, because the mean of its divisors is an integer number (28854009457).

Almost surely, 2^57708018913 is an apocalyptic number.

It is an amenable number.

57708018913 is a deficient number, since it is larger than the sum of its proper divisors (1).

57708018913 is an equidigital number, since it uses as much as digits as its factorization.

57708018913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 49.

The spelling of 57708018913 in words is "fifty-seven billion, seven hundred eight million, eighteen thousand, nine hundred thirteen".