57187170413 has 2 divisors, whose sum is σ = 57187170414. Its totient is φ = 57187170412.

The previous prime is 57187170409. The next prime is 57187170449. The reversal of 57187170413 is 31407178175.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42535762564 + 14651407849 = 206242^2 + 121043^2 .

It is a cyclic number.

It is not a de Polignac number, because 57187170413 - 2² = 57187170409 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57187170473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28593585206 + 28593585207.

It is an arithmetic number, because the mean of its divisors is an integer number (28593585207).

Almost surely, 2^57187170413 is an apocalyptic number.

It is an amenable number.

57187170413 is a deficient number, since it is larger than the sum of its proper divisors (1).

57187170413 is an equidigital number, since it uses as much as digits as its factorization.

57187170413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 164640, while the sum is 44.

The spelling of 57187170413 in words is "fifty-seven billion, one hundred eighty-seven million, one hundred seventy thousand, four hundred thirteen".