13973309644 has 24 divisors (see below), whose sum is σ = 28848124928. Its totient is φ = 5795381520.

The previous prime is 13973309639. The next prime is 13973309719. The reversal of 13973309644 is 44690337931.

13973309644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8048274 + ... + 8050009.

Almost surely, 2^13973309644 is an apocalyptic number.

13973309644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13973309644 is an abundant number, since it is smaller than the sum of its proper divisors (14874815284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13973309644 is a wasteful number, since it uses less digits than its factorization.

13973309644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16098325 (or 16098323 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 49.

The spelling of 13973309644 in words is "thirteen billion, nine hundred seventy-three million, three hundred nine thousand, six hundred forty-four".