388744768036 has 9 divisors (see below), whose sum is σ = 680305526299. Its totient is φ = 194371760524.

The previous prime is 388744767991. The next prime is 388744768091. The reversal of 388744768036 is 630867447883.

The square root of 388744768036 is 623494.

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

It is a super-2 number, since 2×388744768036² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1091115 + ... + 1402861.

Almost surely, 2^388744768036 is an apocalyptic number.

388744768036 is the 623494-th square number.

It is an amenable number.

388744768036 is a deficient number, since it is larger than the sum of its proper divisors (291560758263).

388744768036 is an frugal number, since it uses more digits than its factorization.

388744768036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623498 (or 311749 counting only the distinct ones).

The product of its (nonzero) digits is 130056192, while the sum is 64.

Multiplying 388744768036 by its sum of digits (64), we get a square (24879665154304 = 4987952²).

The spelling of 388744768036 in words is "three hundred eighty-eight billion, seven hundred forty-four million, seven hundred sixty-eight thousand, thirty-six".