13613729969 has 16 divisors (see below), whose sum is σ = 16430625792. Its totient is φ = 11027079888.

The previous prime is 13613729929. The next prime is 13613730001. The reversal of 13613729969 is 96992731631.

It is a de Polignac number, because none of the positive numbers 2^k-13613729969 is a prime.

It is a super-2 number, since 2×13613729969² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13613729929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 496019 + ... + 522744.

It is an arithmetic number, because the mean of its divisors is an integer number (1026914112).

Almost surely, 2^13613729969 is an apocalyptic number.

It is an amenable number.

13613729969 is a deficient number, since it is larger than the sum of its proper divisors (2816895823).

13613729969 is a wasteful number, since it uses less digits than its factorization.

13613729969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018876.

The product of its digits is 3306744, while the sum is 56.

The spelling of 13613729969 in words is "thirteen billion, six hundred thirteen million, seven hundred twenty-nine thousand, nine hundred sixty-nine".