226781432087723 has 2 divisors, whose sum is σ = 226781432087724. Its totient is φ = 226781432087722.

The previous prime is 226781432087719. The next prime is 226781432087753. The reversal of 226781432087723 is 327780234187622.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 226781432087723 - 2² = 226781432087719 is a prime.

It is not a weakly prime, because it can be changed into another prime (226781432087753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113390716043861 + 113390716043862.

It is an arithmetic number, because the mean of its divisors is an integer number (113390716043862).

Almost surely, 2^{226781432087723} is an apocalyptic number.

226781432087723 is a deficient number, since it is larger than the sum of its proper divisors (1).

226781432087723 is an equidigital number, since it uses as much as digits as its factorization.

226781432087723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75866112, while the sum is 62.

The spelling of 226781432087723 in words is "two hundred twenty-six trillion, seven hundred eighty-one billion, four hundred thirty-two million, eighty-seven thousand, seven hundred twenty-three".