57186438475493 has 2 divisors, whose sum is σ = 57186438475494. Its totient is φ = 57186438475492.

The previous prime is 57186438475469. The next prime is 57186438475511. The reversal of 57186438475493 is 39457483468175.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38988510070084 + 18197928405409 = 6244078^2 + 4265903^2 .

It is a cyclic number.

It is not a de Polignac number, because 57186438475493 - 2¹⁴ = 57186438459109 is a prime.

It is a super-2 number, since 2×57186438475493² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 57186438475493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57186438475433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28593219237746 + 28593219237747.

It is an arithmetic number, because the mean of its divisors is an integer number (28593219237747).

Almost surely, 2^{57186438475493} is an apocalyptic number.

It is an amenable number.

57186438475493 is a deficient number, since it is larger than the sum of its proper divisors (1).

57186438475493 is an equidigital number, since it uses as much as digits as its factorization.

57186438475493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2438553600, while the sum is 74.

The spelling of 57186438475493 in words is "fifty-seven trillion, one hundred eighty-six billion, four hundred thirty-eight million, four hundred seventy-five thousand, four hundred ninety-three".