388087817664 has 56 divisors (see below), whose sum is σ = 1026953404560. Its totient is φ = 129345255424.

The previous prime is 388087817651. The next prime is 388087817687. The reversal of 388087817664 is 466718780883.

It is a super-2 number, since 2×388087817664² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 388087817595 and 388087817604.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 1341502 + ... + 1604930.

Almost surely, 2^388087817664 is an apocalyptic number.

It is an amenable number.

388087817664 is an abundant number, since it is smaller than the sum of its proper divisors (638865586896).

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

388087817664 is a wasteful number, since it uses less digits than its factorization.

388087817664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271117 (or 271107 counting only the distinct ones).

The product of its (nonzero) digits is 86704128, while the sum is 66.

The spelling of 388087817664 in words is "three hundred eighty-eight billion, eighty-seven million, eight hundred seventeen thousand, six hundred sixty-four".