13694439229 has 2 divisors, whose sum is σ = 13694439230. Its totient is φ = 13694439228.

The previous prime is 13694439217. The next prime is 13694439289. The reversal of 13694439229 is 92293449631.

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., 8099100025 + 5595339204 = 89995^2 + 74802^2 .

It is a cyclic number.

It is not a de Polignac number, because 13694439229 - 2¹¹ = 13694437181 is a prime.

It is a super-2 number, since 2×13694439229² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13694439289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6847219614 + 6847219615.

It is an arithmetic number, because the mean of its divisors is an integer number (6847219615).

Almost surely, 2^13694439229 is an apocalyptic number.

It is an amenable number.

13694439229 is a deficient number, since it is larger than the sum of its proper divisors (1).

13694439229 is an equidigital number, since it uses as much as digits as its factorization.

13694439229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2519424, while the sum is 52.

The spelling of 13694439229 in words is "thirteen billion, six hundred ninety-four million, four hundred thirty-nine thousand, two hundred twenty-nine".