3181845412 has 48 divisors (see below), whose sum is σ = 5952058560. Its totient is φ = 1484034048.

The previous prime is 3181845391. The next prime is 3181845419. The reversal of 3181845412 is 2145481813.

It is not an unprimeable number, because it can be changed into a prime (3181845419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1398708 + ... + 1400980.

It is an arithmetic number, because the mean of its divisors is an integer number (124001220).

Almost surely, 2^3181845412 is an apocalyptic number.

It is an amenable number.

3181845412 is a deficient number, since it is larger than the sum of its proper divisors (2770213148).

3181845412 is a wasteful number, since it uses less digits than its factorization.

3181845412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2572 (or 2570 counting only the distinct ones).

The product of its digits is 30720, while the sum is 37.

The square root of 3181845412 is about 56407.8488510243. The cubic root of 3181845412 is about 1470.8205596610.

The spelling of 3181845412 in words is "three billion, one hundred eighty-one million, eight hundred forty-five thousand, four hundred twelve".