57871474657 has 2 divisors, whose sum is σ = 57871474658. Its totient is φ = 57871474656.

The previous prime is 57871474643. The next prime is 57871474709. The reversal of 57871474657 is 75647417875.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57850351441 + 21123216 = 240521^2 + 4596^2 .

It is a cyclic number.

It is not a de Polignac number, because 57871474657 - 2³¹ = 55723991009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57871474595 and 57871474604.

It is not a weakly prime, because it can be changed into another prime (57871474057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28935737328 + 28935737329.

It is an arithmetic number, because the mean of its divisors is an integer number (28935737329).

Almost surely, 2^57871474657 is an apocalyptic number.

It is an amenable number.

57871474657 is a deficient number, since it is larger than the sum of its proper divisors (1).

57871474657 is an equidigital number, since it uses as much as digits as its factorization.

57871474657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46099200, while the sum is 61.

The spelling of 57871474657 in words is "fifty-seven billion, eight hundred seventy-one million, four hundred seventy-four thousand, six hundred fifty-seven".