11646863089 has 2 divisors, whose sum is σ = 11646863090. Its totient is φ = 11646863088.

The previous prime is 11646863023. The next prime is 11646863117. The reversal of 11646863089 is 98036864611.

11646863089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11539056400 + 107806689 = 107420^2 + 10383^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11646863089 is a prime.

It is not a weakly prime, because it can be changed into another prime (11646363089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5823431544 + 5823431545.

It is an arithmetic number, because the mean of its divisors is an integer number (5823431545).

Almost surely, 2^11646863089 is an apocalyptic number.

It is an amenable number.

11646863089 is a deficient number, since it is larger than the sum of its proper divisors (1).

11646863089 is an equidigital number, since it uses as much as digits as its factorization.

11646863089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1492992, while the sum is 52.

The spelling of 11646863089 in words is "eleven billion, six hundred forty-six million, eight hundred sixty-three thousand, eighty-nine".