866743333117 has 2 divisors, whose sum is σ = 866743333118. Its totient is φ = 866743333116.

The previous prime is 866743333103. The next prime is 866743333213. The reversal of 866743333117 is 711333347668.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 674466345081 + 192276988036 = 821259^2 + 438494^2 .

It is a cyclic number.

It is not a de Polignac number, because 866743333117 - 2¹⁹ = 866742808829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (866743333517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433371666558 + 433371666559.

It is an arithmetic number, because the mean of its divisors is an integer number (433371666559).

Almost surely, 2^866743333117 is an apocalyptic number.

It is an amenable number.

866743333117 is a deficient number, since it is larger than the sum of its proper divisors (1).

866743333117 is an equidigital number, since it uses as much as digits as its factorization.

866743333117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4572288, while the sum is 52.

The spelling of 866743333117 in words is "eight hundred sixty-six billion, seven hundred forty-three million, three hundred thirty-three thousand, one hundred seventeen".