3957191132 has 12 divisors (see below), whose sum is σ = 7072427040. Its totient is φ = 1936497696.

The previous prime is 3957191129. The next prime is 3957191153. The reversal of 3957191132 is 2311917593.

It is a self number, because there is not a number n which added to its sum of digits gives 3957191132.

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, 10524257 + ... + 10524632.

It is an arithmetic number, because the mean of its divisors is an integer number (589368920).

Almost surely, 2^3957191132 is an apocalyptic number.

It is an amenable number.

3957191132 is a deficient number, since it is larger than the sum of its proper divisors (3115235908).

3957191132 is a wasteful number, since it uses less digits than its factorization.

3957191132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21048940 (or 21048938 counting only the distinct ones).

The product of its digits is 51030, while the sum is 41.

The square root of 3957191132 is about 62906.2090099221. The cubic root of 3957191132 is about 1581.7178256085.

The spelling of 3957191132 in words is "three billion, nine hundred fifty-seven million, one hundred ninety-one thousand, one hundred thirty-two".