68005811 has 2 divisors, whose sum is σ = 68005812. Its totient is φ = 68005810.

The previous prime is 68005793. The next prime is 68005829. The reversal of 68005811 is 11850086.

It is a balanced prime because it is at equal distance from previous prime (68005793) and next prime (68005829).

It is a cyclic number.

It is not a de Polignac number, because 68005811 - 2¹⁰ = 68004787 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68085811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34002905 + 34002906.

It is an arithmetic number, because the mean of its divisors is an integer number (34002906).

Almost surely, 2^68005811 is an apocalyptic number.

68005811 is a deficient number, since it is larger than the sum of its proper divisors (1).

68005811 is an equidigital number, since it uses as much as digits as its factorization.

68005811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 68005811 is about 8246.5635873375. The cubic root of 68005811 is about 408.1771365752.

Adding to 68005811 its reverse (11850086), we get a palindrome (79855897).

The spelling of 68005811 in words is "sixty-eight million, five thousand, eight hundred eleven".