13889289499 has 2 divisors, whose sum is σ = 13889289500. Its totient is φ = 13889289498.

The previous prime is 13889289497. The next prime is 13889289517. The reversal of 13889289499 is 99498298831.

It is a weak prime.

It is an emirp because it is prime and its reverse (99498298831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13889289499 - 2¹ = 13889289497 is a prime.

Together with 13889289497, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13889289497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6944644749 + 6944644750.

It is an arithmetic number, because the mean of its divisors is an integer number (6944644750).

Almost surely, 2^13889289499 is an apocalyptic number.

13889289499 is a deficient number, since it is larger than the sum of its proper divisors (1).

13889289499 is an equidigital number, since it uses as much as digits as its factorization.

13889289499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80621568, while the sum is 70.

The spelling of 13889289499 in words is "thirteen billion, eight hundred eighty-nine million, two hundred eighty-nine thousand, four hundred ninety-nine".