13505383289 has 2 divisors, whose sum is σ = 13505383290. Its totient is φ = 13505383288.

The previous prime is 13505383267. The next prime is 13505383319. The reversal of 13505383289 is 98238350531.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12714817600 + 790565689 = 112760^2 + 28117^2 .

It is a cyclic number.

It is not a de Polignac number, because 13505383289 - 2⁸ = 13505383033 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13505383249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6752691644 + 6752691645.

It is an arithmetic number, because the mean of its divisors is an integer number (6752691645).

Almost surely, 2^13505383289 is an apocalyptic number.

It is an amenable number.

13505383289 is a deficient number, since it is larger than the sum of its proper divisors (1).

13505383289 is an equidigital number, since it uses as much as digits as its factorization.

13505383289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 777600, while the sum is 47.

The spelling of 13505383289 in words is "thirteen billion, five hundred five million, three hundred eighty-three thousand, two hundred eighty-nine".