381450218764 has 12 divisors (see below), whose sum is σ = 685579447504. Its totient is φ = 185570376624.

The previous prime is 381450218759. The next prime is 381450218791. The reversal of 381450218764 is 467812054183.

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, 1288683024 + ... + 1288683319.

Almost surely, 2^381450218764 is an apocalyptic number.

It is an amenable number.

381450218764 is a deficient number, since it is larger than the sum of its proper divisors (304129228740).

381450218764 is a wasteful number, since it uses less digits than its factorization.

381450218764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2577366384 (or 2577366382 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 49.

The spelling of 381450218764 in words is "three hundred eighty-one billion, four hundred fifty million, two hundred eighteen thousand, seven hundred sixty-four".