381906758264 has 16 divisors (see below), whose sum is σ = 716105237400. Its totient is φ = 190945361632.

The previous prime is 381906758213. The next prime is 381906758279. The reversal of 381906758264 is 462857609183.

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, 797279 + ... + 1182990.

It is a 1-persistent number, because it is pandigital, but 2⋅381906758264 = 763813516528 is not.

Almost surely, 2^381906758264 is an apocalyptic number.

It is an amenable number.

381906758264 is a deficient number, since it is larger than the sum of its proper divisors (334198479136).

381906758264 is a wasteful number, since it uses less digits than its factorization.

381906758264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004382 (or 2004378 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 59.

The spelling of 381906758264 in words is "three hundred eighty-one billion, nine hundred six million, seven hundred fifty-eight thousand, two hundred sixty-four".