388830814969 has 3 divisors (see below), whose sum is σ = 388831438533. Its totient is φ = 388830191406.

The previous prime is 388830814951. The next prime is 388830814979. The reversal of 388830814969 is 969418038883.

The square root of 388830814969 is 623563.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 388830814969 - 2⁵ = 388830814937 is a prime.

It is a super-4 number, since 4×388830814969⁴ (a number of 47 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (388830814979) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 311782 + ... + 935344.

It is an arithmetic number, because the mean of its divisors is an integer number (129610479511).

Almost surely, 2^388830814969 is an apocalyptic number.

388830814969 is the 623563-rd square number.

388830814969 is the 311782-nd centered octagonal number.

It is an amenable number.

388830814969 is a deficient number, since it is larger than the sum of its proper divisors (623564).

388830814969 is an frugal number, since it uses more digits than its factorization.

388830814969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247126 (or 623563 counting only the distinct ones).

The product of its (nonzero) digits is 71663616, while the sum is 67.

The spelling of 388830814969 in words is "three hundred eighty-eight billion, eight hundred thirty million, eight hundred fourteen thousand, nine hundred sixty-nine".