13339721424 has 80 divisors (see below), whose sum is σ = 36140544000. Its totient is φ = 4231801728.

The previous prime is 13339721411. The next prime is 13339721431. The reversal of 13339721424 is 42412793331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189337 + ... + 250055.

It is an arithmetic number, because the mean of its divisors is an integer number (451756800).

Almost surely, 2^13339721424 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 13339721424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18070272000).

13339721424 is an abundant number, since it is smaller than the sum of its proper divisors (22800822576).

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

13339721424 is a wasteful number, since it uses less digits than its factorization.

13339721424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60952 (or 60946 counting only the distinct ones).

The product of its digits is 108864, while the sum is 39.

The spelling of 13339721424 in words is "thirteen billion, three hundred thirty-nine million, seven hundred twenty-one thousand, four hundred twenty-four".