13986468644 has 12 divisors (see below), whose sum is σ = 24654980364. Its totient is φ = 6942188544.

The previous prime is 13986468623. The next prime is 13986468647. The reversal of 13986468644 is 44686468931.

It can be written as a sum of positive squares in 2 ways, for example, as 12340543744 + 1645924900 = 111088^2 + 40570^2 .

It is not an unprimeable number, because it can be changed into a prime (13986468647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12760829 + ... + 12761924.

It is an arithmetic number, because the mean of its divisors is an integer number (2054581697).

Almost surely, 2^13986468644 is an apocalyptic number.

It is an amenable number.

13986468644 is a deficient number, since it is larger than the sum of its proper divisors (10668511720).

13986468644 is a wasteful number, since it uses less digits than its factorization.

13986468644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25522894 (or 25522892 counting only the distinct ones).

The product of its digits is 23887872, while the sum is 59.

The spelling of 13986468644 in words is "thirteen billion, nine hundred eighty-six million, four hundred sixty-eight thousand, six hundred forty-four".