386993479744 has 21 divisors (see below), whose sum is σ = 767950062141. Its totient is φ = 193494251520.

The previous prime is 386993479727. The next prime is 386993479753. The reversal of 386993479744 is 447974399683.

The square root of 386993479744 is 622088.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 109222318144 + 277771161600 = 330488^2 + 527040^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4937824 + ... + 5015584.

Almost surely, 2^386993479744 is an apocalyptic number.

386993479744 is the 622088-th square number.

It is an amenable number.

386993479744 is a deficient number, since it is larger than the sum of its proper divisors (380956582397).

386993479744 is an frugal number, since it uses more digits than its factorization.

386993479744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155534 (or 77763 counting only the distinct ones).

The product of its digits is 987614208, while the sum is 73.

The spelling of 386993479744 in words is "three hundred eighty-six billion, nine hundred ninety-three million, four hundred seventy-nine thousand, seven hundred forty-four".