836979674221169 has 2 divisors, whose sum is σ = 836979674221170. Its totient is φ = 836979674221168.

The previous prime is 836979674221157. The next prime is 836979674221231. The reversal of 836979674221169 is 961122476979638.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 836932460146225 + 47214074944 = 28929785^2 + 217288^2 .

It is a cyclic number.

It is not a de Polignac number, because 836979674221169 - 2¹⁶ = 836979674155633 is a prime.

It is a super-2 number, since 2×836979674221169² (a number of 31 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 836979674221093 and 836979674221102.

It is not a weakly prime, because it can be changed into another prime (836979674221069) 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, 418489837110584 + 418489837110585.

It is an arithmetic number, because the mean of its divisors is an integer number (418489837110585).

Almost surely, 2^{836979674221169} is an apocalyptic number.

It is an amenable number.

836979674221169 is a deficient number, since it is larger than the sum of its proper divisors (1).

836979674221169 is an equidigital number, since it uses as much as digits as its factorization.

836979674221169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2962842624, while the sum is 80.

The spelling of 836979674221169 in words is "eight hundred thirty-six trillion, nine hundred seventy-nine billion, six hundred seventy-four million, two hundred twenty-one thousand, one hundred sixty-nine".