381998275884 has 24 divisors (see below), whose sum is σ = 990365900720. Its totient is φ = 127332758592.

The previous prime is 381998275873. The next prime is 381998275909. The reversal of 381998275884 is 488572899183.

381998275884 is a `hidden beast` number, since 3 + 8 + 19 + 9 + 8 + 27 + 588 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1768510429 + ... + 1768510644.

Almost surely, 2^381998275884 is an apocalyptic number.

It is an amenable number.

381998275884 is an abundant number, since it is smaller than the sum of its proper divisors (608367624836).

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

381998275884 is a wasteful number, since it uses less digits than its factorization.

381998275884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3537021086 (or 3537021078 counting only the distinct ones).

The product of its digits is 278691840, while the sum is 72.

The spelling of 381998275884 in words is "three hundred eighty-one billion, nine hundred ninety-eight million, two hundred seventy-five thousand, eight hundred eighty-four".