57128457871 has 2 divisors, whose sum is σ = 57128457872. Its totient is φ = 57128457870.

The previous prime is 57128457853. The next prime is 57128457887. The reversal of 57128457871 is 17875482175.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57128457871 - 2⁹ = 57128457359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57128457811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28564228935 + 28564228936.

It is an arithmetic number, because the mean of its divisors is an integer number (28564228936).

Almost surely, 2^57128457871 is an apocalyptic number.

57128457871 is a deficient number, since it is larger than the sum of its proper divisors (1).

57128457871 is an equidigital number, since it uses as much as digits as its factorization.

57128457871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4390400, while the sum is 55.

The spelling of 57128457871 in words is "fifty-seven billion, one hundred twenty-eight million, four hundred fifty-seven thousand, eight hundred seventy-one".