13903626389 has 2 divisors, whose sum is σ = 13903626390. Its totient is φ = 13903626388.

The previous prime is 13903626377. The next prime is 13903626403. The reversal of 13903626389 is 98362630931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12021368164 + 1882258225 = 109642^2 + 43385^2 .

It is a cyclic number.

It is not a de Polignac number, because 13903626389 - 2²⁰ = 13902577813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13903626329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6951813194 + 6951813195.

It is an arithmetic number, because the mean of its divisors is an integer number (6951813195).

Almost surely, 2^13903626389 is an apocalyptic number.

It is an amenable number.

13903626389 is a deficient number, since it is larger than the sum of its proper divisors (1).

13903626389 is an equidigital number, since it uses as much as digits as its factorization.

13903626389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1259712, while the sum is 50.

The spelling of 13903626389 in words is "thirteen billion, nine hundred three million, six hundred twenty-six thousand, three hundred eighty-nine".