57213463997 has 4 divisors (see below), whose sum is σ = 57748169376. Its totient is φ = 56678758620.

The previous prime is 57213463973. The next prime is 57213464039. The reversal of 57213463997 is 79936431275.

57213463997 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 not a de Polignac number, because 57213463997 - 2²⁸ = 56945028541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57213463597) 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, 267352529 + ... + 267352742.

It is an arithmetic number, because the mean of its divisors is an integer number (14437042344).

Almost surely, 2^57213463997 is an apocalyptic number.

It is an amenable number.

57213463997 is a deficient number, since it is larger than the sum of its proper divisors (534705379).

57213463997 is a wasteful number, since it uses less digits than its factorization.

57213463997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534705378.

The product of its digits is 8573040, while the sum is 56.

The spelling of 57213463997 in words is "fifty-seven billion, two hundred thirteen million, four hundred sixty-three thousand, nine hundred ninety-seven".