57185836668 has 18 divisors (see below), whose sum is σ = 144553087224. Its totient is φ = 19061945544.

The previous prime is 57185836667. The next prime is 57185836681. The reversal of 57185836668 is 86663858175.

It is a happy number.

57185836668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57185836667) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 794247696 + ... + 794247767.

It is an arithmetic number, because the mean of its divisors is an integer number (8030727068).

Almost surely, 2^57185836668 is an apocalyptic number.

It is an amenable number.

57185836668 is an abundant number, since it is smaller than the sum of its proper divisors (87367250556).

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

57185836668 is a wasteful number, since it uses less digits than its factorization.

57185836668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588495473 (or 1588495468 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 63.

The spelling of 57185836668 in words is "fifty-seven billion, one hundred eighty-five million, eight hundred thirty-six thousand, six hundred sixty-eight".