3983902513921 has 16 divisors (see below), whose sum is σ = 4356707398848. Its totient is φ = 3612880440000.

The previous prime is 3983902513909. The next prime is 3983902513937. The reversal of 3983902513921 is 1293152093893.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3983902513921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3983902513121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7114671 + ... + 7654171.

It is an arithmetic number, because the mean of its divisors is an integer number (272294212428).

Almost surely, 2^{3983902513921} is an apocalyptic number.

It is an amenable number.

3983902513921 is a deficient number, since it is larger than the sum of its proper divisors (372804884927).

3983902513921 is a wasteful number, since it uses less digits than its factorization.

3983902513921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541152.

The product of its (nonzero) digits is 3149280, while the sum is 55.

The spelling of 3983902513921 in words is "three trillion, nine hundred eighty-three billion, nine hundred two million, five hundred thirteen thousand, nine hundred twenty-one".