13289567788 has 48 divisors (see below), whose sum is σ = 27301317120. Its totient is φ = 5541790464.

The previous prime is 13289567773. The next prime is 13289567849. The reversal of 13289567788 is 88776598231.

It is a happy number.

It is a super-2 number, since 2×13289567788² (a number of 21 digits) contains 22 as substring.

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, 295668 + ... + 337636.

It is an arithmetic number, because the mean of its divisors is an integer number (568777440).

Almost surely, 2^13289567788 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 13289567788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13650658560).

13289567788 is an abundant number, since it is smaller than the sum of its proper divisors (14011749332).

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

13289567788 is a wasteful number, since it uses less digits than its factorization.

13289567788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42286 (or 42284 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 64.

The spelling of 13289567788 in words is "thirteen billion, two hundred eighty-nine million, five hundred sixty-seven thousand, seven hundred eighty-eight".