57191140868 has 24 divisors (see below), whose sum is σ = 101430739200. Its totient is φ = 28211496768.

The previous prime is 57191140861. The next prime is 57191140873. The reversal of 57191140868 is 86804119175.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (57191140861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337121 + ... + 477527.

It is an arithmetic number, because the mean of its divisors is an integer number (4226280800).

Almost surely, 2^57191140868 is an apocalyptic number.

It is an amenable number.

57191140868 is a deficient number, since it is larger than the sum of its proper divisors (44239598332).

57191140868 is a wasteful number, since it uses less digits than its factorization.

57191140868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141779 (or 141777 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 50.

The spelling of 57191140868 in words is "fifty-seven billion, one hundred ninety-one million, one hundred forty thousand, eight hundred sixty-eight".