13446608689 has 2 divisors, whose sum is σ = 13446608690. Its totient is φ = 13446608688.

The previous prime is 13446608629. The next prime is 13446608713. The reversal of 13446608689 is 98680664431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12547808289 + 898800400 = 112017^2 + 29980^2 .

It is a cyclic number.

It is not a de Polignac number, because 13446608689 - 2²⁵ = 13413054257 is a prime.

It is a super-2 number, since 2×13446608689² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13446608629) 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, 6723304344 + 6723304345.

It is an arithmetic number, because the mean of its divisors is an integer number (6723304345).

Almost surely, 2^13446608689 is an apocalyptic number.

It is an amenable number.

13446608689 is a deficient number, since it is larger than the sum of its proper divisors (1).

13446608689 is an equidigital number, since it uses as much as digits as its factorization.

13446608689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5971968, while the sum is 55.

The spelling of 13446608689 in words is "thirteen billion, four hundred forty-six million, six hundred eight thousand, six hundred eighty-nine".