3881334591 has 20 divisors (see below), whose sum is σ = 5877477232. Its totient is φ = 2552106528.

The previous prime is 3881334581. The next prime is 3881334601. The reversal of 3881334591 is 1954331883.

It is an interprime number because it is at equal distance from previous prime (3881334581) and next prime (3881334601).

It is not a de Polignac number, because 3881334591 - 2⁵ = 3881334559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3881334551) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 322291 + ... + 334116.

Almost surely, 2^3881334591 is an apocalyptic number.

3881334591 is a deficient number, since it is larger than the sum of its proper divisors (1996142641).

3881334591 is an equidigital number, since it uses as much as digits as its factorization.

3881334591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656492 (or 656483 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 3881334591 is about 62300.3578721664. The cubic root of 3881334591 is about 1571.5457467576.

The spelling of 3881334591 in words is "three billion, eight hundred eighty-one million, three hundred thirty-four thousand, five hundred ninety-one".