57164473381 has 2 divisors, whose sum is σ = 57164473382. Its totient is φ = 57164473380.

The previous prime is 57164473307. The next prime is 57164473393. The reversal of 57164473381 is 18337446175.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30194622756 + 26969850625 = 173766^2 + 164225^2 .

It is a cyclic number.

It is not a de Polignac number, because 57164473381 - 2²⁹ = 56627602469 is a prime.

It is a super-2 number, since 2×57164473381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57164473981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28582236690 + 28582236691.

It is an arithmetic number, because the mean of its divisors is an integer number (28582236691).

Almost surely, 2^57164473381 is an apocalyptic number.

It is an amenable number.

57164473381 is a deficient number, since it is larger than the sum of its proper divisors (1).

57164473381 is an equidigital number, since it uses as much as digits as its factorization.

57164473381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1693440, while the sum is 49.

The spelling of 57164473381 in words is "fifty-seven billion, one hundred sixty-four million, four hundred seventy-three thousand, three hundred eighty-one".