13345678889 has 8 divisors (see below), whose sum is σ = 13587315720. Its totient is φ = 13106209536.

The previous prime is 13345678859. The next prime is 13345678891. The reversal of 13345678889 is 98887654331.

It can be written as a sum of positive squares in 4 ways, for example, as 876160000 + 12469518889 = 29600^2 + 111667^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13345678889 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (13345678849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 529442 + ... + 554075.

It is an arithmetic number, because the mean of its divisors is an integer number (1698414465).

Almost surely, 2^13345678889 is an apocalyptic number.

It is an amenable number.

13345678889 is a deficient number, since it is larger than the sum of its proper divisors (241636831).

13345678889 is a wasteful number, since it uses less digits than its factorization.

13345678889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083739.

The product of its digits is 34836480, while the sum is 62.

The spelling of 13345678889 in words is "thirteen billion, three hundred forty-five million, six hundred seventy-eight thousand, eight hundred eighty-nine".