381557199632 has 40 divisors (see below), whose sum is σ = 845180280000. Its totient is φ = 163465748352.

The previous prime is 381557199619. The next prime is 381557199641. The reversal of 381557199632 is 236991755183.

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, 298382 + ... + 923117.

It is an arithmetic number, because the mean of its divisors is an integer number (21129507000).

Almost surely, 2^381557199632 is an apocalyptic number.

It is an amenable number.

381557199632 is an abundant number, since it is smaller than the sum of its proper divisors (463623080368).

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

381557199632 is a wasteful number, since it uses less digits than its factorization.

381557199632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224303 (or 1224297 counting only the distinct ones).

The product of its digits is 12247200, while the sum is 59.

The spelling of 381557199632 in words is "three hundred eighty-one billion, five hundred fifty-seven million, one hundred ninety-nine thousand, six hundred thirty-two".