12326985493 has 4 divisors (see below), whose sum is σ = 12862941408. Its totient is φ = 11791029580.

The previous prime is 12326985491. The next prime is 12326985497. The reversal of 12326985493 is 39458962321.

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: 39458962321 = 8641 ⋅4566481.

It is not a de Polignac number, because 12326985493 - 2¹ = 12326985491 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 12326985493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12326985491) 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 3 ways as a sum of consecutive naturals, for example, 267977923 + ... + 267977968.

It is an arithmetic number, because the mean of its divisors is an integer number (3215735352).

Almost surely, 2^12326985493 is an apocalyptic number.

It is an amenable number.

12326985493 is a deficient number, since it is larger than the sum of its proper divisors (535955915).

12326985493 is an equidigital number, since it uses as much as digits as its factorization.

12326985493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535955914.

The product of its digits is 2799360, while the sum is 52.

The spelling of 12326985493 in words is "twelve billion, three hundred twenty-six million, nine hundred eighty-five thousand, four hundred ninety-three".