1068664913 has 2 divisors, whose sum is σ = 1068664914. Its totient is φ = 1068664912.

The previous prime is 1068664907. The next prime is 1068664957. The reversal of 1068664913 is 3194668601.

It is a happy number.

1068664913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (1068664957) can be obtained adding 1068664913 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 987970624 + 80694289 = 31432^2 + 8983^2 .

It is an emirp because it is prime and its reverse (3194668601) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1068664913 is a prime.

It is a super-2 number, since 2×1068664913² = 2284089392554595138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1068664963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534332456 + 534332457.

It is an arithmetic number, because the mean of its divisors is an integer number (534332457).

Almost surely, 2^1068664913 is an apocalyptic number.

It is an amenable number.

1068664913 is a deficient number, since it is larger than the sum of its proper divisors (1).

1068664913 is an equidigital number, since it uses as much as digits as its factorization.

1068664913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 1068664913 is about 32690.4406975495. The cubic root of 1068664913 is about 1022.3835431079.

The spelling of 1068664913 in words is "one billion, sixty-eight million, six hundred sixty-four thousand, nine hundred thirteen".