68011289 has 2 divisors, whose sum is σ = 68011290. Its totient is φ = 68011288.

The previous prime is 68011277. The next prime is 68011297. The reversal of 68011289 is 98211086.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59059225 + 8952064 = 7685^2 + 2992^2 .

It is a cyclic number.

It is not a de Polignac number, because 68011289 - 2²⁰ = 66962713 is a prime.

It is a Chen prime.

It is a plaindrome in base 13.

It is not a weakly prime, because it can be changed into another prime (68011249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34005644 + 34005645.

It is an arithmetic number, because the mean of its divisors is an integer number (34005645).

Almost surely, 2^68011289 is an apocalyptic number.

It is an amenable number.

68011289 is a deficient number, since it is larger than the sum of its proper divisors (1).

68011289 is an equidigital number, since it uses as much as digits as its factorization.

68011289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 68011289 is about 8246.8957189963. The cubic root of 68011289 is about 408.1880961010.

The spelling of 68011289 in words is "sixty-eight million, eleven thousand, two hundred eighty-nine".