68819011 has 2 divisors, whose sum is σ = 68819012. Its totient is φ = 68819010.

The previous prime is 68818993. The next prime is 68819087. The reversal of 68819011 is 11091886.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68819011 is a prime.

It is not a weakly prime, because it can be changed into another prime (68817011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34409505 + 34409506.

It is an arithmetic number, because the mean of its divisors is an integer number (34409506).

Almost surely, 2^68819011 is an apocalyptic number.

68819011 is a deficient number, since it is larger than the sum of its proper divisors (1).

68819011 is an equidigital number, since it uses as much as digits as its factorization.

68819011 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 34.

The square root of 68819011 is about 8295.7224519628. The cubic root of 68819011 is about 409.7976614138.

The spelling of 68819011 in words is "sixty-eight million, eight hundred nineteen thousand, eleven".