3909338263321 has 16 divisors (see below), whose sum is σ = 4165065515520. Its totient is φ = 3656502224640.

The previous prime is 3909338263199. The next prime is 3909338263333. The reversal of 3909338263321 is 1233628339093.

It is a cyclic number.

It is not a de Polignac number, because 3909338263321 - 2¹⁹ = 3909337739033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3909338263361) 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, 3986350 + ... + 4869256.

It is an arithmetic number, because the mean of its divisors is an integer number (260316594720).

Almost surely, 2^{3909338263321} is an apocalyptic number.

It is an amenable number.

3909338263321 is a deficient number, since it is larger than the sum of its proper divisors (255727252199).

3909338263321 is a wasteful number, since it uses less digits than its factorization.

3909338263321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884544.

The product of its (nonzero) digits is 3779136, while the sum is 52.

The spelling of 3909338263321 in words is "three trillion, nine hundred nine billion, three hundred thirty-eight million, two hundred sixty-three thousand, three hundred twenty-one".