57871216927 has 4 divisors (see below), whose sum is σ = 61275406176. Its totient is φ = 54467027680.

The previous prime is 57871216913. The next prime is 57871216939. The reversal of 57871216927 is 72961217875.

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 57871216927 - 2¹¹ = 57871214879 is a prime.

It is a super-2 number, since 2×57871216927² (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 (57871216967) 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, 1702094599 + ... + 1702094632.

It is an arithmetic number, because the mean of its divisors is an integer number (15318851544).

Almost surely, 2^57871216927 is an apocalyptic number.

57871216927 is a deficient number, since it is larger than the sum of its proper divisors (3404189249).

57871216927 is a wasteful number, since it uses less digits than its factorization.

57871216927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3404189248.

The product of its digits is 2963520, while the sum is 55.

The spelling of 57871216927 in words is "fifty-seven billion, eight hundred seventy-one million, two hundred sixteen thousand, nine hundred twenty-seven".