68160234689 has 2 divisors, whose sum is σ = 68160234690. Its totient is φ = 68160234688.

The previous prime is 68160234661. The next prime is 68160234713. The reversal of 68160234689 is 98643206186.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57017321089 + 11142913600 = 238783^2 + 105560^2 .

It is a cyclic number.

It is not a de Polignac number, because 68160234689 - 2¹⁶ = 68160169153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68160234689.

It is not a weakly prime, because it can be changed into another prime (68160234619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34080117344 + 34080117345.

It is an arithmetic number, because the mean of its divisors is an integer number (34080117345).

Almost surely, 2^68160234689 is an apocalyptic number.

It is an amenable number.

68160234689 is a deficient number, since it is larger than the sum of its proper divisors (1).

68160234689 is an equidigital number, since it uses as much as digits as its factorization.

68160234689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2985984, while the sum is 53.

The spelling of 68160234689 in words is "sixty-eight billion, one hundred sixty million, two hundred thirty-four thousand, six hundred eighty-nine".