388642720676 has 48 divisors (see below), whose sum is σ = 779260379520. Its totient is φ = 166138318080.

The previous prime is 388642720651. The next prime is 388642720691. The reversal of 388642720676 is 676027246883.

It is a happy number.

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, 32838056 + ... + 32849888.

It is an arithmetic number, because the mean of its divisors is an integer number (16234591240).

Almost surely, 2^388642720676 is an apocalyptic number.

It is an amenable number.

388642720676 is an abundant number, since it is smaller than the sum of its proper divisors (390617658844).

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

388642720676 is a wasteful number, since it uses less digits than its factorization.

388642720676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14724 (or 14722 counting only the distinct ones).

The product of its (nonzero) digits is 32514048, while the sum is 59.

The spelling of 388642720676 in words is "three hundred eighty-eight billion, six hundred forty-two million, seven hundred twenty thousand, six hundred seventy-six".