381275941844 has 12 divisors (see below), whose sum is σ = 762551883744. Its totient is φ = 163403975064.

The previous prime is 381275941831. The next prime is 381275941873. The reversal of 381275941844 is 448149572183.

381275941844 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 381275941844.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6808498934 + ... + 6808498989.

It is an arithmetic number, because the mean of its divisors is an integer number (63545990312).

Almost surely, 2^381275941844 is an apocalyptic number.

It is an amenable number.

381275941844 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

381275941844 is a wasteful number, since it uses less digits than its factorization.

381275941844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13616997934 (or 13616997932 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 56.

The spelling of 381275941844 in words is "three hundred eighty-one billion, two hundred seventy-five million, nine hundred forty-one thousand, eight hundred forty-four".