13634386907329 has 4 divisors (see below), whose sum is σ = 13656628974676. Its totient is φ = 13612144839984.

The previous prime is 13634386907327. The next prime is 13634386907353. The reversal of 13634386907329 is 92370968343631.

It is a happy number.

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 1430033305600 + 12204353601729 = 1195840^2 + 3493473^2 .

It is a cyclic number.

It is not a de Polignac number, because 13634386907329 - 2¹ = 13634386907327 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13634386907327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11121032754 + ... + 11121033979.

It is an arithmetic number, because the mean of its divisors is an integer number (3414157243669).

Almost surely, 2^{13634386907329} is an apocalyptic number.

It is an amenable number.

13634386907329 is a deficient number, since it is larger than the sum of its proper divisors (22242067347).

13634386907329 is an equidigital number, since it uses as much as digits as its factorization.

13634386907329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22242067346.

The product of its (nonzero) digits is 105815808, while the sum is 64.

The spelling of 13634386907329 in words is "thirteen trillion, six hundred thirty-four billion, three hundred eighty-six million, nine hundred seven thousand, three hundred twenty-nine".