13631307269 has 16 divisors (see below), whose sum is σ = 14052270960. Its totient is φ = 13214845440.

The previous prime is 13631307229. The next prime is 13631307289. The reversal of 13631307269 is 96270313631.

It can be written as a sum of positive squares in 8 ways, for example, as 700660900 + 12930646369 = 26470^2 + 113713^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13631307269 is a prime.

It is a super-2 number, since 2×13631307269² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13631307229) 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, 4671599 + ... + 4674515.

It is an arithmetic number, because the mean of its divisors is an integer number (878266935).

Almost surely, 2^13631307269 is an apocalyptic number.

It is an amenable number.

13631307269 is a deficient number, since it is larger than the sum of its proper divisors (420963691).

13631307269 is a wasteful number, since it uses less digits than its factorization.

13631307269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3640.

The product of its (nonzero) digits is 122472, while the sum is 41.

The spelling of 13631307269 in words is "thirteen billion, six hundred thirty-one million, three hundred seven thousand, two hundred sixty-nine".