68594739841 has 2 divisors, whose sum is σ = 68594739842. Its totient is φ = 68594739840.

The previous prime is 68594739827. The next prime is 68594739859. The reversal of 68594739841 is 14893749586.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53515882225 + 15078857616 = 231335^2 + 122796^2 .

It is a cyclic number.

It is not a de Polignac number, because 68594739841 - 2⁵ = 68594739809 is a prime.

It is not a weakly prime, because it can be changed into another prime (68594739641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34297369920 + 34297369921.

It is an arithmetic number, because the mean of its divisors is an integer number (34297369921).

Almost surely, 2^68594739841 is an apocalyptic number.

It is an amenable number.

68594739841 is a deficient number, since it is larger than the sum of its proper divisors (1).

68594739841 is an equidigital number, since it uses as much as digits as its factorization.

68594739841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52254720, while the sum is 64.

The spelling of 68594739841 in words is "sixty-eight billion, five hundred ninety-four million, seven hundred thirty-nine thousand, eight hundred forty-one".