68634011 has 2 divisors, whose sum is σ = 68634012. Its totient is φ = 68634010.

The previous prime is 68633953. The next prime is 68634073. The reversal of 68634011 is 11043686.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68634011 - 2¹⁰ = 68632987 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68634911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34317005 + 34317006.

It is an arithmetic number, because the mean of its divisors is an integer number (34317006).

Almost surely, 2^68634011 is an apocalyptic number.

68634011 is a deficient number, since it is larger than the sum of its proper divisors (1).

68634011 is an equidigital number, since it uses as much as digits as its factorization.

68634011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 68634011 is about 8284.5646234428. The cubic root of 68634011 is about 409.4301243952.

Adding to 68634011 its reverse (11043686), we get a palindrome (79677697).

The spelling of 68634011 in words is "sixty-eight million, six hundred thirty-four thousand, eleven".