386681254568 has 64 divisors (see below), whose sum is σ = 839052466560. Its totient is φ = 163632807936.

The previous prime is 386681254559. The next prime is 386681254613. The reversal of 386681254568 is 865452186683.

It is a Cunningham number, because it is equal to 621837²-1.

It is a self number, because there is not a number n which added to its sum of digits gives 386681254568.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8683496 + ... + 8727912.

It is an arithmetic number, because the mean of its divisors is an integer number (13110194790).

Almost surely, 2^386681254568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 386681254568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (419526233280).

386681254568 is an abundant number, since it is smaller than the sum of its proper divisors (452371211992).

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

386681254568 is a wasteful number, since it uses less digits than its factorization.

386681254568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46386 (or 46382 counting only the distinct ones).

The product of its digits is 66355200, while the sum is 62.

The spelling of 386681254568 in words is "three hundred eighty-six billion, six hundred eighty-one million, two hundred fifty-four thousand, five hundred sixty-eight".