13289643528 has 64 divisors (see below), whose sum is σ = 38083244160. Its totient is φ = 3785757696.

The previous prime is 13289643491. The next prime is 13289643539. The reversal of 13289643528 is 82534698231.

It is a happy number.

It is a super-2 number, since 2×13289643528² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

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, 60751 + ... + 173982.

It is an arithmetic number, because the mean of its divisors is an integer number (595050690).

Almost surely, 2^13289643528 is an apocalyptic number.

It is an amenable number.

13289643528 is an abundant number, since it is smaller than the sum of its proper divisors (24793600632).

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

13289643528 is a wasteful number, since it uses less digits than its factorization.

13289643528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235086 (or 235082 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 51.

The spelling of 13289643528 in words is "thirteen billion, two hundred eighty-nine million, six hundred forty-three thousand, five hundred twenty-eight".