57718502857 has 2 divisors, whose sum is σ = 57718502858. Its totient is φ = 57718502856.

The previous prime is 57718502851. The next prime is 57718502861. The reversal of 57718502857 is 75820581775.

57718502857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29179130761 + 28539372096 = 170819^2 + 168936^2 .

It is a cyclic number.

It is not a de Polignac number, because 57718502857 - 2²³ = 57710114249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57718502798 and 57718502807.

It is not a weakly prime, because it can be changed into another prime (57718502851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28859251428 + 28859251429.

It is an arithmetic number, because the mean of its divisors is an integer number (28859251429).

Almost surely, 2^57718502857 is an apocalyptic number.

It is an amenable number.

57718502857 is a deficient number, since it is larger than the sum of its proper divisors (1).

57718502857 is an equidigital number, since it uses as much as digits as its factorization.

57718502857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5488000, while the sum is 55.

The spelling of 57718502857 in words is "fifty-seven billion, seven hundred eighteen million, five hundred two thousand, eight hundred fifty-seven".