3968039644812 has 72 divisors (see below), whose sum is σ = 10211956425216. Its totient is φ = 1298919001824.

The previous prime is 3968039644781. The next prime is 3968039644813. The reversal of 3968039644812 is 2184469308693.

3968039644812 is a `hidden beast` number, since 3 + 9 + 68 + 0 + 3 + 96 + 4 + 481 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 3968039644812.

It is not an unprimeable number, because it can be changed into a prime (3968039644813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3477028 + ... + 4475019.

It is an arithmetic number, because the mean of its divisors is an integer number (141832728128).

Almost surely, 2^{3968039644812} is an apocalyptic number.

It is an amenable number.

3968039644812 is an abundant number, since it is smaller than the sum of its proper divisors (6243916780404).

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

3968039644812 is a wasteful number, since it uses less digits than its factorization.

3968039644812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7952307 (or 7952302 counting only the distinct ones).

The product of its (nonzero) digits is 53747712, while the sum is 63.

The spelling of 3968039644812 in words is "three trillion, nine hundred sixty-eight billion, thirty-nine million, six hundred forty-four thousand, eight hundred twelve".