3881261164 has 24 divisors (see below), whose sum is σ = 7492942800. Its totient is φ = 1744385280.

The previous prime is 3881261147. The next prime is 3881261171. The reversal of 3881261164 is 4611621883.

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, 491649 + ... + 499480.

It is an arithmetic number, because the mean of its divisors is an integer number (312205950).

Almost surely, 2^3881261164 is an apocalyptic number.

It is an amenable number.

3881261164 is a deficient number, since it is larger than the sum of its proper divisors (3611681636).

3881261164 is a wasteful number, since it uses less digits than its factorization.

3881261164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991233 (or 991231 counting only the distinct ones).

The product of its digits is 55296, while the sum is 40.

The square root of 3881261164 is about 62299.7685709987. The cubic root of 3881261164 is about 1571.5358365394.

The spelling of 3881261164 in words is "three billion, eight hundred eighty-one million, two hundred sixty-one thousand, one hundred sixty-four".