68028241817 has 2 divisors, whose sum is σ = 68028241818. Its totient is φ = 68028241816.

The previous prime is 68028241783. The next prime is 68028241861. The reversal of 68028241817 is 71814282086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66040776256 + 1987465561 = 256984^2 + 44581^2 .

It is a cyclic number.

It is not a de Polignac number, because 68028241817 - 2³⁴ = 50848372633 is a prime.

It is a super-2 number, since 2×68028241817² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68028241867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34014120908 + 34014120909.

It is an arithmetic number, because the mean of its divisors is an integer number (34014120909).

Almost surely, 2^68028241817 is an apocalyptic number.

It is an amenable number.

68028241817 is a deficient number, since it is larger than the sum of its proper divisors (1).

68028241817 is an equidigital number, since it uses as much as digits as its factorization.

68028241817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 344064, while the sum is 47.

The spelling of 68028241817 in words is "sixty-eight billion, twenty-eight million, two hundred forty-one thousand, eight hundred seventeen".