12009285289 has 4 divisors (see below), whose sum is σ = 12009600256. Its totient is φ = 12008970324.

The previous prime is 12009285287. The next prime is 12009285307. The reversal of 12009285289 is 98258290021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12009285289 - 2¹ = 12009285287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12009285287) 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 in 3 ways as a sum of consecutive naturals, for example, 90909 + ... + 179674.

It is an arithmetic number, because the mean of its divisors is an integer number (3002400064).

Almost surely, 2^12009285289 is an apocalyptic number.

It is an amenable number.

12009285289 is a deficient number, since it is larger than the sum of its proper divisors (314967).

12009285289 is an equidigital number, since it uses as much as digits as its factorization.

12009285289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314966.

The product of its (nonzero) digits is 207360, while the sum is 46.

The spelling of 12009285289 in words is "twelve billion, nine million, two hundred eighty-five thousand, two hundred eighty-nine".