13355788889 has 4 divisors (see below), whose sum is σ = 13379767524. Its totient is φ = 13331810256.

The previous prime is 13355788861. The next prime is 13355788903. The reversal of 13355788889 is 98888755331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 313006864 + 13042782025 = 17692^2 + 114205^2 .

It is a cyclic number.

It is not a de Polignac number, because 13355788889 - 2²⁰ = 13354740313 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (13355788819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11988482 + ... + 11989595.

It is an arithmetic number, because the mean of its divisors is an integer number (3344941881).

Almost surely, 2^13355788889 is an apocalyptic number.

It is an amenable number.

13355788889 is a deficient number, since it is larger than the sum of its proper divisors (23978635).

13355788889 is an equidigital number, since it uses as much as digits as its factorization.

13355788889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23978634.

The product of its digits is 58060800, while the sum is 65.

The spelling of 13355788889 in words is "thirteen billion, three hundred fifty-five million, seven hundred eighty-eight thousand, eight hundred eighty-nine".