3969043371999 has 12 divisors (see below), whose sum is σ = 5744738953512. Its totient is φ = 2640639850800.

The previous prime is 3969043371989. The next prime is 3969043372003. The reversal of 3969043371999 is 9991733409693.

3969043371999 is a `hidden beast` number, since 3 + 9 + 6 + 90 + 433 + 7 + 19 + 99 = 666.

It is not a de Polignac number, because 3969043371999 - 2¹² = 3969043367903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3969043371989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 449083992 + ... + 449092829.

It is an arithmetic number, because the mean of its divisors is an integer number (478728246126).

Almost surely, 2^{3969043371999} is an apocalyptic number.

3969043371999 is a deficient number, since it is larger than the sum of its proper divisors (1775695581513).

3969043371999 is a wasteful number, since it uses less digits than its factorization.

3969043371999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898177318 (or 898177315 counting only the distinct ones).

The product of its (nonzero) digits is 267846264, while the sum is 72.

The spelling of 3969043371999 in words is "three trillion, nine hundred sixty-nine billion, forty-three million, three hundred seventy-one thousand, nine hundred ninety-nine".