3791287912 has 32 divisors (see below), whose sum is σ = 7534640520. Its totient is φ = 1782282240.

The previous prime is 3791287909. The next prime is 3791287919. The reversal of 3791287912 is 2197821973.

It can be written as a sum of positive squares in 4 ways, for example, as 3664365156 + 126922756 = 60534^2 + 11266^2 .

It is not an unprimeable number, because it can be changed into a prime (3791287919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121612 + ... + 149572.

Almost surely, 2^3791287912 is an apocalyptic number.

It is an amenable number.

3791287912 is a deficient number, since it is larger than the sum of its proper divisors (3743352608).

3791287912 is a wasteful number, since it uses less digits than its factorization.

3791287912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28981 (or 28977 counting only the distinct ones).

The product of its digits is 381024, while the sum is 49.

The square root of 3791287912 is about 61573.4351161278. The cubic root of 3791287912 is about 1559.2972826688.

The spelling of 3791287912 in words is "three billion, seven hundred ninety-one million, two hundred eighty-seven thousand, nine hundred twelve".