381945089032 has 32 divisors (see below), whose sum is σ = 787644547200. Its totient is φ = 172531658304.

The previous prime is 381945089027. The next prime is 381945089051. The reversal of 381945089032 is 230980549183.

It is a Harshad number since it is a multiple of its sum of digits (52).

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, 39064782 + ... + 39074557.

It is an arithmetic number, because the mean of its divisors is an integer number (24613892100).

Almost surely, 2^381945089032 is an apocalyptic number.

It is an amenable number.

381945089032 is an abundant number, since it is smaller than the sum of its proper divisors (405699458168).

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

381945089032 is a wasteful number, since it uses less digits than its factorization.

381945089032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78139405 (or 78139401 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 52.

The spelling of 381945089032 in words is "three hundred eighty-one billion, nine hundred forty-five million, eighty-nine thousand, thirty-two".