132689450809 has 2 divisors, whose sum is σ = 132689450810. Its totient is φ = 132689450808.

The previous prime is 132689450807. The next prime is 132689450813. The reversal of 132689450809 is 908054986231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79846935184 + 52842515625 = 282572^2 + 229875^2 .

It is a cyclic number.

It is not a de Polignac number, because 132689450809 - 2¹ = 132689450807 is a prime.

Together with 132689450807, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 132689450809.

It is not a weakly prime, because it can be changed into another prime (132689450807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66344725404 + 66344725405.

It is an arithmetic number, because the mean of its divisors is an integer number (66344725405).

Almost surely, 2^132689450809 is an apocalyptic number.

It is an amenable number.

132689450809 is a deficient number, since it is larger than the sum of its proper divisors (1).

132689450809 is an equidigital number, since it uses as much as digits as its factorization.

132689450809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3732480, while the sum is 55.

The spelling of 132689450809 in words is "one hundred thirty-two billion, six hundred eighty-nine million, four hundred fifty thousand, eight hundred nine".