12609143406817 has 4 divisors (see below), whose sum is σ = 12797339577136. Its totient is φ = 12420947236500.

The previous prime is 12609143406803. The next prime is 12609143406823. The reversal of 12609143406817 is 71860434190621.

12609143406817 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12609143406817 - 2¹⁹ = 12609142882529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12609143406857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94098085059 + ... + 94098085192.

It is an arithmetic number, because the mean of its divisors is an integer number (3199334894284).

Almost surely, 2^{12609143406817} is an apocalyptic number.

It is an amenable number.

12609143406817 is a deficient number, since it is larger than the sum of its proper divisors (188196170319).

12609143406817 is an equidigital number, since it uses as much as digits as its factorization.

12609143406817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188196170318.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 12609143406817 in words is "twelve trillion, six hundred nine billion, one hundred forty-three million, four hundred six thousand, eight hundred seventeen".