57708018871 has 4 divisors (see below), whose sum is σ = 57871498032. Its totient is φ = 57544539712.

The previous prime is 57708018839. The next prime is 57708018913. The reversal of 57708018871 is 17881080775.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57708018871 - 2⁵ = 57708018839 is a prime.

It is a super-2 number, since 2×57708018871² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57708018811) 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, 81739051 + ... + 81739756.

It is an arithmetic number, because the mean of its divisors is an integer number (14467874508).

Almost surely, 2^57708018871 is an apocalyptic number.

57708018871 is a deficient number, since it is larger than the sum of its proper divisors (163479161).

57708018871 is a wasteful number, since it uses less digits than its factorization.

57708018871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163479160.

The product of its (nonzero) digits is 878080, while the sum is 52.

The spelling of 57708018871 in words is "fifty-seven billion, seven hundred eight million, eighteen thousand, eight hundred seventy-one".