12325481809 has 4 divisors (see below), whose sum is σ = 12414154480. Its totient is φ = 12236809140.

The previous prime is 12325481807. The next prime is 12325481867. The reversal of 12325481809 is 90818452321.

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, and also an emirpimes, since its reverse is a distinct semiprime: 90818452321 = 301361².

It is a cyclic number.

It is not a de Polignac number, because 12325481809 - 2¹ = 12325481807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12325481807) 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, 44336127 + ... + 44336404.

It is an arithmetic number, because the mean of its divisors is an integer number (3103538620).

Almost surely, 2^12325481809 is an apocalyptic number.

It is an amenable number.

12325481809 is a deficient number, since it is larger than the sum of its proper divisors (88672671).

12325481809 is an equidigital number, since it uses as much as digits as its factorization.

12325481809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88672670.

The product of its (nonzero) digits is 138240, while the sum is 43.

The spelling of 12325481809 in words is "twelve billion, three hundred twenty-five million, four hundred eighty-one thousand, eight hundred nine".