386431397988 has 48 divisors (see below), whose sum is σ = 907657215360. Its totient is φ = 127956052224.

The previous prime is 386431397987. The next prime is 386431398007. The reversal of 386431397988 is 889793134683.

It is not an unprimeable number, because it can be changed into a prime (386431397987) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 7648353 + ... + 7698711.

It is an arithmetic number, because the mean of its divisors is an integer number (18909525320).

Almost surely, 2^386431397988 is an apocalyptic number.

It is an amenable number.

386431397988 is an abundant number, since it is smaller than the sum of its proper divisors (521225817372).

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

386431397988 is a wasteful number, since it uses less digits than its factorization.

386431397988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54596 (or 54594 counting only the distinct ones).

The product of its digits is 188116992, while the sum is 69.

The spelling of 386431397988 in words is "three hundred eighty-six billion, four hundred thirty-one million, three hundred ninety-seven thousand, nine hundred eighty-eight".