168758283217 has 2 divisors, whose sum is σ = 168758283218. Its totient is φ = 168758283216.

The previous prime is 168758283173. The next prime is 168758283251. The reversal of 168758283217 is 712382857861.

168758283217 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., 139241668801 + 29516614416 = 373151^2 + 171804^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168758283217 is a prime.

It is not a weakly prime, because it can be changed into another prime (168758284217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84379141608 + 84379141609.

It is an arithmetic number, because the mean of its divisors is an integer number (84379141609).

Almost surely, 2^168758283217 is an apocalyptic number.

It is an amenable number.

168758283217 is a deficient number, since it is larger than the sum of its proper divisors (1).

168758283217 is an equidigital number, since it uses as much as digits as its factorization.

168758283217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9031680, while the sum is 58.

The spelling of 168758283217 in words is "one hundred sixty-eight billion, seven hundred fifty-eight million, two hundred eighty-three thousand, two hundred seventeen".