128768564287219 has 2 divisors, whose sum is σ = 128768564287220. Its totient is φ = 128768564287218.

The previous prime is 128768564287127. The next prime is 128768564287247. The reversal of 128768564287219 is 912782465867821.

It is a strong prime.

It is an emirp because it is prime and its reverse (912782465867821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128768564287219 - 2¹⁹ = 128768563762931 is a prime.

It is a super-2 number, since 2×128768564287219² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (128768564287249) 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, 64384282143609 + 64384282143610.

It is an arithmetic number, because the mean of its divisors is an integer number (64384282143610).

Almost surely, 2^{128768564287219} is an apocalyptic number.

128768564287219 is a deficient number, since it is larger than the sum of its proper divisors (1).

128768564287219 is an equidigital number, since it uses as much as digits as its factorization.

128768564287219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1300561920, while the sum is 76.

The spelling of 128768564287219 in words is "one hundred twenty-eight trillion, seven hundred sixty-eight billion, five hundred sixty-four million, two hundred eighty-seven thousand, two hundred nineteen".