3091961943 has 32 divisors (see below), whose sum is σ = 5376568320. Its totient is φ = 1719079200.

The previous prime is 3091961923. The next prime is 3091961981. The reversal of 3091961943 is 3491691903.

3091961943 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3091961943 - 2¹⁸ = 3091699799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3091961923) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 214083 + ... + 228068.

It is an arithmetic number, because the mean of its divisors is an integer number (168017760).

Almost surely, 2^3091961943 is an apocalyptic number.

3091961943 is a deficient number, since it is larger than the sum of its proper divisors (2284606377).

3091961943 is a wasteful number, since it uses less digits than its factorization.

3091961943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442204 (or 442198 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 45.

The square root of 3091961943 is about 55605.4128929909. The cubic root of 3091961943 is about 1456.8383989089.

The spelling of 3091961943 in words is "three billion, ninety-one million, nine hundred sixty-one thousand, nine hundred forty-three".