13969936129 has 4 divisors (see below), whose sum is σ = 13974641200. Its totient is φ = 13965231060.

The previous prime is 13969936091. The next prime is 13969936139. The reversal of 13969936129 is 92163996931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92163996931 = 2371 ⋅38871361.

It is a cyclic number.

It is not a de Polignac number, because 13969936129 - 2²³ = 13961547521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13969936139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2348079 + ... + 2354020.

It is an arithmetic number, because the mean of its divisors is an integer number (3493660300).

Almost surely, 2^13969936129 is an apocalyptic number.

It is an amenable number.

13969936129 is a deficient number, since it is larger than the sum of its proper divisors (4705071).

13969936129 is an equidigital number, since it uses as much as digits as its factorization.

13969936129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4705070.

The product of its digits is 4251528, while the sum is 58.

The spelling of 13969936129 in words is "thirteen billion, nine hundred sixty-nine million, nine hundred thirty-six thousand, one hundred twenty-nine".