918718022317 has 2 divisors, whose sum is σ = 918718022318. Its totient is φ = 918718022316.

The previous prime is 918718022279. The next prime is 918718022323. The reversal of 918718022317 is 713220817819.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 589587479716 + 329130542601 = 767846^2 + 573699^2 .

It is a cyclic number.

It is not a de Polignac number, because 918718022317 - 2³¹ = 916570538669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (918718023317) 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, 459359011158 + 459359011159.

It is an arithmetic number, because the mean of its divisors is an integer number (459359011159).

Almost surely, 2^918718022317 is an apocalyptic number.

It is an amenable number.

918718022317 is a deficient number, since it is larger than the sum of its proper divisors (1).

918718022317 is an equidigital number, since it uses as much as digits as its factorization.

918718022317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 338688, while the sum is 49.

The spelling of 918718022317 in words is "nine hundred eighteen billion, seven hundred eighteen million, twenty-two thousand, three hundred seventeen".