68117611 has 2 divisors, whose sum is σ = 68117612. Its totient is φ = 68117610.

The previous prime is 68117579. The next prime is 68117669. The reversal of 68117611 is 11671186.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68117611 - 2⁵ = 68117579 is a prime.

It is not a weakly prime, because it can be changed into another prime (68117311) 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, 34058805 + 34058806.

It is an arithmetic number, because the mean of its divisors is an integer number (34058806).

Almost surely, 2^68117611 is an apocalyptic number.

68117611 is a deficient number, since it is larger than the sum of its proper divisors (1).

68117611 is an equidigital number, since it uses as much as digits as its factorization.

68117611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 31.

The square root of 68117611 is about 8253.3393847581. The cubic root of 68117611 is about 408.4006920764.

Adding to 68117611 its reverse (11671186), we get a palindrome (79788797).

The spelling of 68117611 in words is "sixty-eight million, one hundred seventeen thousand, six hundred eleven".