388622572816 has 15 divisors (see below), whose sum is σ = 752961066181. Its totient is φ = 194310039616.

The previous prime is 388622572783. The next prime is 388622572861. The reversal of 388622572816 is 618275226883.

The square root of 388622572816 is 623396.

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., 282815494416 + 105807078400 = 531804^2 + 325280^2 .

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, 2415660 + ... + 2571508.

Almost surely, 2^388622572816 is an apocalyptic number.

388622572816 is the 623396-th square number.

It is an amenable number.

388622572816 is a deficient number, since it is larger than the sum of its proper divisors (364338493365).

388622572816 is an frugal number, since it uses more digits than its factorization.

388622572816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311706 (or 155851 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 58.

The spelling of 388622572816 in words is "three hundred eighty-eight billion, six hundred twenty-two million, five hundred seventy-two thousand, eight hundred sixteen".