387994775232 has 28 divisors (see below), whose sum is σ = 1026569509976. Its totient is φ = 129331591680.

The previous prime is 387994775227. The next prime is 387994775243. The reversal of 387994775232 is 232577499783.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1010402869 + ... + 1010403252.

Almost surely, 2^387994775232 is an apocalyptic number.

387994775232 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

387994775232 is an abundant number, since it is smaller than the sum of its proper divisors (638574734744).

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

387994775232 is a wasteful number, since it uses less digits than its factorization.

387994775232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020806136 (or 2020806126 counting only the distinct ones).

The product of its digits is 160030080, while the sum is 66.

The spelling of 387994775232 in words is "three hundred eighty-seven billion, nine hundred ninety-four million, seven hundred seventy-five thousand, two hundred thirty-two".