57646138686 has 16 divisors (see below), whose sum is σ = 115326317568. Its totient is φ = 19209706200.

The previous prime is 57646138679. The next prime is 57646138699. The reversal of 57646138686 is 68683164675.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1396300 + ... + 1436991.

It is an arithmetic number, because the mean of its divisors is an integer number (7207894848).

Almost surely, 2^57646138686 is an apocalyptic number.

57646138686 is an abundant number, since it is smaller than the sum of its proper divisors (57680178882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57646138686 is a wasteful number, since it uses less digits than its factorization.

57646138686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2836687.

The product of its digits is 34836480, while the sum is 60.

The spelling of 57646138686 in words is "fifty-seven billion, six hundred forty-six million, one hundred thirty-eight thousand, six hundred eighty-six".