12605943459 has 8 divisors (see below), whose sum is σ = 16808476672. Its totient is φ = 8403686280.

The previous prime is 12605943451. The next prime is 12605943473. The reversal of 12605943459 is 95434950621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12605943459 - 2³ = 12605943451 is a prime.

It is a super-3 number, since 3×12605943459³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12605943451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89694 + ... + 182364.

It is an arithmetic number, because the mean of its divisors is an integer number (2101059584).

Almost surely, 2^12605943459 is an apocalyptic number.

12605943459 is a deficient number, since it is larger than the sum of its proper divisors (4202533213).

12605943459 is an equidigital number, since it uses as much as digits as its factorization.

12605943459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138017.

The product of its (nonzero) digits is 1166400, while the sum is 48.

The spelling of 12605943459 in words is "twelve billion, six hundred five million, nine hundred forty-three thousand, four hundred fifty-nine".