13443339968 has 56 divisors (see below), whose sum is σ = 29157070464. Its totient is φ = 6122188800.

The previous prime is 13443339961. The next prime is 13443339977. The reversal of 13443339968 is 86993334431.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13443339961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165563 + ... + 233018.

Almost surely, 2^13443339968 is an apocalyptic number.

It is an amenable number.

13443339968 is an abundant number, since it is smaller than the sum of its proper divisors (15713730496).

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

13443339968 is a wasteful number, since it uses less digits than its factorization.

13443339968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398641 (or 398631 counting only the distinct ones).

The product of its digits is 5038848, while the sum is 53.

The spelling of 13443339968 in words is "thirteen billion, four hundred forty-three million, three hundred thirty-nine thousand, nine hundred sixty-eight".