388616636922 has 16 divisors (see below), whose sum is σ = 777354850272. Its totient is φ = 129518616240.

The previous prime is 388616636893. The next prime is 388616636929. The reversal of 388616636922 is 229636616883.

It is not an unprimeable number, because it can be changed into a prime (388616636929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5024104 + ... + 5100867.

It is an arithmetic number, because the mean of its divisors is an integer number (48584678142).

Almost surely, 2^388616636922 is an apocalyptic number.

388616636922 is an abundant number, since it is smaller than the sum of its proper divisors (388738213350).

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

388616636922 is a wasteful number, since it uses less digits than its factorization.

388616636922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10131373.

The product of its digits is 26873856, while the sum is 60.

The spelling of 388616636922 in words is "three hundred eighty-eight billion, six hundred sixteen million, six hundred thirty-six thousand, nine hundred twenty-two".