1068268309 has 2 divisors, whose sum is σ = 1068268310. Its totient is φ = 1068268308.

The previous prime is 1068268303. The next prime is 1068268351. The reversal of 1068268309 is 9038628601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 828173284 + 240095025 = 28778^2 + 15495^2 .

It is an emirp because it is prime and its reverse (9038628601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1068268309 - 2¹³ = 1068260117 is a prime.

It is a super-2 number, since 2×1068268309² = 2282394360027438962, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1068268303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534134154 + 534134155.

It is an arithmetic number, because the mean of its divisors is an integer number (534134155).

Almost surely, 2^1068268309 is an apocalyptic number.

It is an amenable number.

1068268309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1068268309 is an equidigital number, since it uses as much as digits as its factorization.

1068268309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 1068268309 is about 32684.3740799790. The cubic root of 1068268309 is about 1022.2570514550.

The spelling of 1068268309 in words is "one billion, sixty-eight million, two hundred sixty-eight thousand, three hundred nine".