226879206689 has 2 divisors, whose sum is σ = 226879206690. Its totient is φ = 226879206688.

The previous prime is 226879206637. The next prime is 226879206779. The reversal of 226879206689 is 986602978622.

226879206689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 173249910289 + 53629296400 = 416233^2 + 231580^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226879206689 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (226879202689) 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 as a sum of consecutive naturals, namely, 113439603344 + 113439603345.

It is an arithmetic number, because the mean of its divisors is an integer number (113439603345).

Almost surely, 2^226879206689 is an apocalyptic number.

It is an amenable number.

226879206689 is a deficient number, since it is larger than the sum of its proper divisors (1).

226879206689 is an equidigital number, since it uses as much as digits as its factorization.

226879206689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62705664, while the sum is 65.

The spelling of 226879206689 in words is "two hundred twenty-six billion, eight hundred seventy-nine million, two hundred six thousand, six hundred eighty-nine".