3081921892 has 24 divisors (see below), whose sum is σ = 6431838336. Its totient is φ = 1263396288.

The previous prime is 3081921883. The next prime is 3081921911. The reversal of 3081921892 is 2981291803.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2392153 + ... + 2393440.

It is an arithmetic number, because the mean of its divisors is an integer number (267993264).

Almost surely, 2^3081921892 is an apocalyptic number.

It is an amenable number.

3081921892 is an abundant number, since it is smaller than the sum of its proper divisors (3349916444).

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

3081921892 is a wasteful number, since it uses less digits than its factorization.

3081921892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4785627 (or 4785625 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 3081921892 is about 55515.0600468017. The cubic root of 3081921892 is about 1455.2598335378.

The spelling of 3081921892 in words is "three billion, eighty-one million, nine hundred twenty-one thousand, eight hundred ninety-two".