136422231408689 has 2 divisors, whose sum is σ = 136422231408690. Its totient is φ = 136422231408688.

The previous prime is 136422231408649. The next prime is 136422231408707. The reversal of 136422231408689 is 986804132224631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131240325504289 + 5181905904400 = 11456017^2 + 2276380^2 .

It is a cyclic number.

It is not a de Polignac number, because 136422231408689 - 2²⁰ = 136422230360113 is a prime.

It is a super-2 number, since 2×136422231408689² (a number of 29 digits) contains 22 as substring.

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 (136422231408649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68211115704344 + 68211115704345.

It is an arithmetic number, because the mean of its divisors is an integer number (68211115704345).

Almost surely, 2^{136422231408689} is an apocalyptic number.

It is an amenable number.

136422231408689 is a deficient number, since it is larger than the sum of its proper divisors (1).

136422231408689 is an equidigital number, since it uses as much as digits as its factorization.

136422231408689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23887872, while the sum is 59.

The spelling of 136422231408689 in words is "one hundred thirty-six trillion, four hundred twenty-two billion, two hundred thirty-one million, four hundred eight thousand, six hundred eighty-nine".