68013611 has 2 divisors, whose sum is σ = 68013612. Its totient is φ = 68013610.

The previous prime is 68013593. The next prime is 68013637. The reversal of 68013611 is 11631086.

It is an a-pointer prime, because the next prime (68013637) can be obtained adding 68013611 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68013611 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68018611) 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, 34006805 + 34006806.

It is an arithmetic number, because the mean of its divisors is an integer number (34006806).

Almost surely, 2^68013611 is an apocalyptic number.

68013611 is a deficient number, since it is larger than the sum of its proper divisors (1).

68013611 is an equidigital number, since it uses as much as digits as its factorization.

68013611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 68013611 is about 8247.0364980398. The cubic root of 68013611 is about 408.1927414179.

Adding to 68013611 its reverse (11631086), we get a palindrome (79644697).

The spelling of 68013611 in words is "sixty-eight million, thirteen thousand, six hundred eleven".