68322512917 has 2 divisors, whose sum is σ = 68322512918. Its totient is φ = 68322512916.

The previous prime is 68322512903. The next prime is 68322512963. The reversal of 68322512917 is 71921522386.

68322512917 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (68322512963) can be obtained adding 68322512917 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50676312996 + 17646199921 = 225114^2 + 132839^2 .

It is a cyclic number.

It is not a de Polignac number, because 68322512917 - 2²³ = 68314124309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68322512977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34161256458 + 34161256459.

It is an arithmetic number, because the mean of its divisors is an integer number (34161256459).

Almost surely, 2^68322512917 is an apocalyptic number.

It is an amenable number.

68322512917 is a deficient number, since it is larger than the sum of its proper divisors (1).

68322512917 is an equidigital number, since it uses as much as digits as its factorization.

68322512917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 46.

The spelling of 68322512917 in words is "sixty-eight billion, three hundred twenty-two million, five hundred twelve thousand, nine hundred seventeen".