3215843938389 has 8 divisors (see below), whose sum is σ = 4287823967200. Its totient is φ = 2143879934256.

The previous prime is 3215843938339. The next prime is 3215843938397. The reversal of 3215843938389 is 9838393485123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3215843938389 - 2¹⁷ = 3215843807317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3215843938309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3529822 + ... + 4346415.

It is an arithmetic number, because the mean of its divisors is an integer number (535977995900).

Almost surely, 2^{3215843938389} is an apocalyptic number.

It is an amenable number.

3215843938389 is a deficient number, since it is larger than the sum of its proper divisors (1071980028811).

3215843938389 is a wasteful number, since it uses less digits than its factorization.

3215843938389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8012339.

The product of its digits is 134369280, while the sum is 66.

The spelling of 3215843938389 in words is "three trillion, two hundred fifteen billion, eight hundred forty-three million, nine hundred thirty-eight thousand, three hundred eighty-nine".