13281731384 has 8 divisors (see below), whose sum is σ = 24903246360. Its totient is φ = 6640865688.

The previous prime is 13281731341. The next prime is 13281731459. The reversal of 13281731384 is 48313718231.

13281731384 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

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 as a sum of consecutive naturals, namely, 830108204 + ... + 830108219.

It is an arithmetic number, because the mean of its divisors is an integer number (3112905795).

Almost surely, 2^13281731384 is an apocalyptic number.

It is an amenable number.

13281731384 is a deficient number, since it is larger than the sum of its proper divisors (11621514976).

13281731384 is a wasteful number, since it uses less digits than its factorization.

13281731384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660216429 (or 1660216425 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The spelling of 13281731384 in words is "thirteen billion, two hundred eighty-one million, seven hundred thirty-one thousand, three hundred eighty-four".