57271898881 has 4 divisors (see below), whose sum is σ = 57367512000. Its totient is φ = 57176285764.

The previous prime is 57271898861. The next prime is 57271898899. The reversal of 57271898881 is 18889817275.

57271898881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57271898881 is a prime.

It is a super-2 number, since 2×57271898881² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57271898861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47805661 + ... + 47806858.

It is an arithmetic number, because the mean of its divisors is an integer number (14341878000).

Almost surely, 2^57271898881 is an apocalyptic number.

It is an amenable number.

57271898881 is a deficient number, since it is larger than the sum of its proper divisors (95613119).

57271898881 is an equidigital number, since it uses as much as digits as its factorization.

57271898881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95613118.

The product of its digits is 18063360, while the sum is 64.

The spelling of 57271898881 in words is "fifty-seven billion, two hundred seventy-one million, eight hundred ninety-eight thousand, eight hundred eighty-one".