68242744885349 has 2 divisors, whose sum is σ = 68242744885350. Its totient is φ = 68242744885348.

The previous prime is 68242744885291. The next prime is 68242744885379. The reversal of 68242744885349 is 94358844724286.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61735434696100 + 6507310189249 = 7857190^2 + 2550943^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68242744885349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68242744885379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34121372442674 + 34121372442675.

It is an arithmetic number, because the mean of its divisors is an integer number (34121372442675).

Almost surely, 2^{68242744885349} is an apocalyptic number.

It is an amenable number.

68242744885349 is a deficient number, since it is larger than the sum of its proper divisors (1).

68242744885349 is an equidigital number, since it uses as much as digits as its factorization.

68242744885349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2972712960, while the sum is 74.

The spelling of 68242744885349 in words is "sixty-eight trillion, two hundred forty-two billion, seven hundred forty-four million, eight hundred eighty-five thousand, three hundred forty-nine".