381947872384 has 64 divisors (see below), whose sum is σ = 819652236480. Its totient is φ = 176238720000.

The previous prime is 381947872373. The next prime is 381947872409. The reversal of 381947872384 is 483278749183.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (64).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7013259 + ... + 7067509.

It is an arithmetic number, because the mean of its divisors is an integer number (12807066195).

Almost surely, 2^381947872384 is an apocalyptic number.

It is an amenable number.

381947872384 is an abundant number, since it is smaller than the sum of its proper divisors (437704364096).

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

381947872384 is a wasteful number, since it uses less digits than its factorization.

381947872384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58509 (or 58497 counting only the distinct ones).

The product of its digits is 65028096, while the sum is 64.

The spelling of 381947872384 in words is "three hundred eighty-one billion, nine hundred forty-seven million, eight hundred seventy-two thousand, three hundred eighty-four".