12219450628609 has 24 divisors (see below), whose sum is σ = 14518090228608. Its totient is φ = 10250126076960.

The previous prime is 12219450628603. The next prime is 12219450628613. The reversal of 12219450628609 is 90682605491221.

It is not a de Polignac number, because 12219450628609 - 2¹⁷ = 12219450497537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12219450628609.

It is not an unprimeable number, because it can be changed into a prime (12219450628603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28670382 + ... + 29093464.

It is an arithmetic number, because the mean of its divisors is an integer number (604920426192).

Almost surely, 2^{12219450628609} is an apocalyptic number.

It is an amenable number.

12219450628609 is a deficient number, since it is larger than the sum of its proper divisors (2298639599999).

12219450628609 is a wasteful number, since it uses less digits than its factorization.

12219450628609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435685 (or 435678 counting only the distinct ones).

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

The spelling of 12219450628609 in words is "twelve trillion, two hundred nineteen billion, four hundred fifty million, six hundred twenty-eight thousand, six hundred nine".