13864138289 has 2 divisors, whose sum is σ = 13864138290. Its totient is φ = 13864138288.

The previous prime is 13864138247. The next prime is 13864138429. The reversal of 13864138289 is 98283146831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13820353600 + 43784689 = 117560^2 + 6617^2 .

It is a cyclic number.

It is not a de Polignac number, because 13864138289 - 2⁸ = 13864138033 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13864138289.

It is not a weakly prime, because it can be changed into another prime (13864138229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6932069144 + 6932069145.

It is an arithmetic number, because the mean of its divisors is an integer number (6932069145).

Almost surely, 2^13864138289 is an apocalyptic number.

It is an amenable number.

13864138289 is a deficient number, since it is larger than the sum of its proper divisors (1).

13864138289 is an equidigital number, since it uses as much as digits as its factorization.

13864138289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1990656, while the sum is 53.

The spelling of 13864138289 in words is "thirteen billion, eight hundred sixty-four million, one hundred thirty-eight thousand, two hundred eighty-nine".