381855190488 has 16 divisors (see below), whose sum is σ = 954637976280. Its totient is φ = 127285063488.

The previous prime is 381855190477. The next prime is 381855190579. The reversal of 381855190488 is 884091558183.

It is a congruent 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, 7955316445 + ... + 7955316492.

Almost surely, 2^381855190488 is an apocalyptic number.

It is an amenable number.

381855190488 is an abundant number, since it is smaller than the sum of its proper divisors (572782785792).

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

381855190488 is a wasteful number, since it uses less digits than its factorization.

381855190488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15910632946 (or 15910632942 counting only the distinct ones).

The product of its (nonzero) digits is 11059200, while the sum is 60.

The spelling of 381855190488 in words is "three hundred eighty-one billion, eight hundred fifty-five million, one hundred ninety thousand, four hundred eighty-eight".