13881346868 has 12 divisors (see below), whose sum is σ = 24396617700. Its totient is φ = 6910884672.

The previous prime is 13881346867. The next prime is 13881346879. The reversal of 13881346868 is 86864318831.

13881346868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9470793124 + 4410553744 = 97318^2 + 66412^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13881346867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7446143 + ... + 7448006.

It is an arithmetic number, because the mean of its divisors is an integer number (2033051475).

Almost surely, 2^13881346868 is an apocalyptic number.

It is an amenable number.

13881346868 is a deficient number, since it is larger than the sum of its proper divisors (10515270832).

13881346868 is a wasteful number, since it uses less digits than its factorization.

13881346868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14894386 (or 14894384 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 56.

The spelling of 13881346868 in words is "thirteen billion, eight hundred eighty-one million, three hundred forty-six thousand, eight hundred sixty-eight".