57671534391 has 16 divisors (see below), whose sum is σ = 81033108480. Its totient is φ = 36411927200.

The previous prime is 57671534369. The next prime is 57671534399. The reversal of 57671534391 is 19343517675.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57671534391 is a prime.

57671534391 is a modest number, since divided by 534391 gives 57671 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57671534399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4130751 + ... + 4144688.

It is an arithmetic number, because the mean of its divisors is an integer number (5064569280).

Almost surely, 2^57671534391 is an apocalyptic number.

57671534391 is a deficient number, since it is larger than the sum of its proper divisors (23361574089).

57671534391 is a wasteful number, since it uses less digits than its factorization.

57671534391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8275566.

The product of its digits is 2381400, while the sum is 51.

The spelling of 57671534391 in words is "fifty-seven billion, six hundred seventy-one million, five hundred thirty-four thousand, three hundred ninety-one".