13647242227 has 4 divisors (see below), whose sum is σ = 13647858760. Its totient is φ = 13646625696.

The previous prime is 13647242221. The next prime is 13647242239. The reversal of 13647242227 is 72224274631.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72224274631 = 17 ⋅4248486743.

It is a cyclic number.

It is not a de Polignac number, because 13647242227 - 2¹¹ = 13647240179 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13647242227.

It is not an unprimeable number, because it can be changed into a prime (13647242221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273777 + ... + 319762.

It is an arithmetic number, because the mean of its divisors is an integer number (3411964690).

Almost surely, 2^13647242227 is an apocalyptic number.

13647242227 is a deficient number, since it is larger than the sum of its proper divisors (616533).

13647242227 is an equidigital number, since it uses as much as digits as its factorization.

13647242227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616532.

The product of its digits is 225792, while the sum is 40.

The spelling of 13647242227 in words is "thirteen billion, six hundred forty-seven million, two hundred forty-two thousand, two hundred twenty-seven".