388016836820 has 24 divisors (see below), whose sum is σ = 857721429600. Its totient is φ = 147037959072.

The previous prime is 388016836789. The next prime is 388016836843. The reversal of 388016836820 is 28638610883.

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, 510548090 + ... + 510548849.

It is an arithmetic number, because the mean of its divisors is an integer number (35738392900).

Almost surely, 2^388016836820 is an apocalyptic number.

It is an amenable number.

388016836820 is an abundant number, since it is smaller than the sum of its proper divisors (469704592780).

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

388016836820 is a wasteful number, since it uses less digits than its factorization.

388016836820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021096967 (or 1021096965 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 53.

The spelling of 388016836820 in words is "three hundred eighty-eight billion, sixteen million, eight hundred thirty-six thousand, eight hundred twenty".