57147917171 has 2 divisors, whose sum is σ = 57147917172. Its totient is φ = 57147917170.

The previous prime is 57147917131. The next prime is 57147917207. The reversal of 57147917171 is 17171974175.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57147917171 is a prime.

It is not a weakly prime, because it can be changed into another prime (57147917131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28573958585 + 28573958586.

It is an arithmetic number, because the mean of its divisors is an integer number (28573958586).

Almost surely, 2^57147917171 is an apocalyptic number.

57147917171 is a deficient number, since it is larger than the sum of its proper divisors (1).

57147917171 is an equidigital number, since it uses as much as digits as its factorization.

57147917171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432180, while the sum is 50.

The spelling of 57147917171 in words is "fifty-seven billion, one hundred forty-seven million, nine hundred seventeen thousand, one hundred seventy-one".