57771968171 has 2 divisors, whose sum is σ = 57771968172. Its totient is φ = 57771968170.

The previous prime is 57771968153. The next prime is 57771968179. The reversal of 57771968171 is 17186917775.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57771968171 - 2²² = 57767773867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57771968171.

It is not a weakly prime, because it can be changed into another prime (57771968179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28885984085 + 28885984086.

It is an arithmetic number, because the mean of its divisors is an integer number (28885984086).

Almost surely, 2^57771968171 is an apocalyptic number.

57771968171 is a deficient number, since it is larger than the sum of its proper divisors (1).

57771968171 is an equidigital number, since it uses as much as digits as its factorization.

57771968171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5186160, while the sum is 59.

The spelling of 57771968171 in words is "fifty-seven billion, seven hundred seventy-one million, nine hundred sixty-eight thousand, one hundred seventy-one".