388388888888 has 96 divisors (see below), whose sum is σ = 985169750880. Its totient is φ = 139680288000.

The previous prime is 388388888887. The next prime is 388388888933. The reversal of 388388888888 is 888888883883.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388388888887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2116463 + ... + 2292638.

It is an arithmetic number, because the mean of its divisors is an integer number (10262184905).

Almost surely, 2^388388888888 is an apocalyptic number.

It is an amenable number.

388388888888 is an abundant number, since it is smaller than the sum of its proper divisors (596780861992).

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

388388888888 is a wasteful number, since it uses less digits than its factorization.

388388888888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4409149 (or 4409134 counting only the distinct ones).

The product of its digits is 9663676416, while the sum is 86.

The spelling of 388388888888 in words is "three hundred eighty-eight billion, three hundred eighty-eight million, eight hundred eighty-eight thousand, eight hundred eighty-eight".