13993581392 has 80 divisors (see below), whose sum is σ = 31318269312. Its totient is φ = 5933191680.

The previous prime is 13993581389. The next prime is 13993581431. The reversal of 13993581392 is 29318539931.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5471378 + ... + 5473934.

Almost surely, 2^13993581392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13993581392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15659134656).

13993581392 is an abundant number, since it is smaller than the sum of its proper divisors (17324687920).

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

13993581392 is a wasteful number, since it uses less digits than its factorization.

13993581392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3076 (or 3070 counting only the distinct ones).

The product of its digits is 1574640, while the sum is 53.

The spelling of 13993581392 in words is "thirteen billion, nine hundred ninety-three million, five hundred eighty-one thousand, three hundred ninety-two".