13399654528 has 64 divisors (see below), whose sum is σ = 28771686720. Its totient is φ = 6179374080.

The previous prime is 13399654501. The next prime is 13399654529. The reversal of 13399654528 is 82545699331.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (13399654529) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2671543 + ... + 2676553.

It is an arithmetic number, because the mean of its divisors is an integer number (449557605).

Almost surely, 2^13399654528 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 13399654528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14385843360).

13399654528 is an abundant number, since it is smaller than the sum of its proper divisors (15372032192).

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

13399654528 is a wasteful number, since it uses less digits than its factorization.

13399654528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6645 (or 6633 counting only the distinct ones).

The product of its digits is 6998400, while the sum is 55.

The spelling of 13399654528 in words is "thirteen billion, three hundred ninety-nine million, six hundred fifty-four thousand, five hundred twenty-eight".