68443844834479 has 2 divisors, whose sum is σ = 68443844834480. Its totient is φ = 68443844834478.

The previous prime is 68443844834447. The next prime is 68443844834527. The reversal of 68443844834479 is 97443844834486.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68443844834479 - 2⁵ = 68443844834447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68443844874479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34221922417239 + 34221922417240.

It is an arithmetic number, because the mean of its divisors is an integer number (34221922417240).

Almost surely, 2^{68443844834479} is an apocalyptic number.

68443844834479 is a deficient number, since it is larger than the sum of its proper divisors (1).

68443844834479 is an equidigital number, since it uses as much as digits as its factorization.

68443844834479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7134511104, while the sum is 76.

The spelling of 68443844834479 in words is "sixty-eight trillion, four hundred forty-three billion, eight hundred forty-four million, eight hundred thirty-four thousand, four hundred seventy-nine".