57956380871 has 2 divisors, whose sum is σ = 57956380872. Its totient is φ = 57956380870.

The previous prime is 57956380849. The next prime is 57956380877. The reversal of 57956380871 is 17808365975.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57956380871 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57956380871.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57956380877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28978190435 + 28978190436.

It is an arithmetic number, because the mean of its divisors is an integer number (28978190436).

Almost surely, 2^57956380871 is an apocalyptic number.

57956380871 is a deficient number, since it is larger than the sum of its proper divisors (1).

57956380871 is an equidigital number, since it uses as much as digits as its factorization.

57956380871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12700800, while the sum is 59.

The spelling of 57956380871 in words is "fifty-seven billion, nine hundred fifty-six million, three hundred eighty thousand, eight hundred seventy-one".