57431508671 has 4 divisors (see below), whose sum is σ = 58653455712. Its totient is φ = 56209561632.

The previous prime is 57431508649. The next prime is 57431508733. The reversal of 57431508671 is 17680513475.

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 57431508671 - 2¹⁰ = 57431507647 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 1221946993 = 57431508671 / (5 + 7 + 4 + 3 + 1 + 5 + 0 + 8 + 6 + 7 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57431508611) 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, 610973450 + ... + 610973543.

It is an arithmetic number, because the mean of its divisors is an integer number (14663363928).

Almost surely, 2^57431508671 is an apocalyptic number.

57431508671 is a deficient number, since it is larger than the sum of its proper divisors (1221947041).

57431508671 is a wasteful number, since it uses less digits than its factorization.

57431508671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221947040.

The product of its (nonzero) digits is 705600, while the sum is 47.

The spelling of 57431508671 in words is "fifty-seven billion, four hundred thirty-one million, five hundred eight thousand, six hundred seventy-one".