13436829209 has 8 divisors (see below), whose sum is σ = 13634115912. Its totient is φ = 13240917760.

The previous prime is 13436829191. The next prime is 13436829233. The reversal of 13436829209 is 90292863431.

13436829209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5408131600 + 8028697609 = 73540^2 + 89603^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13436829209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13436829409) 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 7 ways as a sum of consecutive naturals, for example, 324122 + ... + 363219.

It is an arithmetic number, because the mean of its divisors is an integer number (1704264489).

Almost surely, 2^13436829209 is an apocalyptic number.

It is an amenable number.

13436829209 is a deficient number, since it is larger than the sum of its proper divisors (197286703).

13436829209 is a wasteful number, since it uses less digits than its factorization.

13436829209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687627.

The product of its (nonzero) digits is 559872, while the sum is 47.

The spelling of 13436829209 in words is "thirteen billion, four hundred thirty-six million, eight hundred twenty-nine thousand, two hundred nine".