36686744768669 has 2 divisors, whose sum is σ = 36686744768670. Its totient is φ = 36686744768668.

The previous prime is 36686744768627. The next prime is 36686744768683. The reversal of 36686744768669 is 96686744768663.

36686744768669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34122304444900 + 2564440323769 = 5841430^2 + 1601387^2 .

It is a cyclic number.

It is not a de Polignac number, because 36686744768669 - 2²⁴ = 36686727991453 is a prime.

It is a super-2 number, since 2×36686744768669² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36686744768699) 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, 18343372384334 + 18343372384335.

It is an arithmetic number, because the mean of its divisors is an integer number (18343372384335).

Almost surely, 2^{36686744768669} is an apocalyptic number.

It is an amenable number.

36686744768669 is a deficient number, since it is larger than the sum of its proper divisors (1).

36686744768669 is an equidigital number, since it uses as much as digits as its factorization.

36686744768669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63207309312, while the sum is 86.

The spelling of 36686744768669 in words is "thirty-six trillion, six hundred eighty-six billion, seven hundred forty-four million, seven hundred sixty-eight thousand, six hundred sixty-nine".