867493913133613 has 2 divisors, whose sum is σ = 867493913133614. Its totient is φ = 867493913133612.

The previous prime is 867493913133611. The next prime is 867493913133637. The reversal of 867493913133613 is 316331319394768.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 511764023328804 + 355729889804809 = 22622202^2 + 18860803^2 .

It is a cyclic number.

It is not a de Polignac number, because 867493913133613 - 2¹ = 867493913133611 is a prime.

Together with 867493913133611, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (867493913133611) 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, 433746956566806 + 433746956566807.

It is an arithmetic number, because the mean of its divisors is an integer number (433746956566807).

Almost surely, 2^{867493913133613} is an apocalyptic number.

It is an amenable number.

867493913133613 is a deficient number, since it is larger than the sum of its proper divisors (1).

867493913133613 is an equidigital number, since it uses as much as digits as its factorization.

867493913133613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 158723712, while the sum is 67.

The spelling of 867493913133613 in words is "eight hundred sixty-seven trillion, four hundred ninety-three billion, nine hundred thirteen million, one hundred thirty-three thousand, six hundred thirteen".