12604144441 has 4 divisors (see below), whose sum is σ = 14404736512. Its totient is φ = 10803552372.

The previous prime is 12604144429. The next prime is 12604144447. The reversal of 12604144441 is 14444140621.

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: 14444140621 = 43 ⋅335910247.

It is a cyclic number.

It is not a de Polignac number, because 12604144441 - 2¹³ = 12604136249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12604144447) 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, 900296025 + ... + 900296038.

It is an arithmetic number, because the mean of its divisors is an integer number (3601184128).

Almost surely, 2^12604144441 is an apocalyptic number.

It is an amenable number.

12604144441 is a deficient number, since it is larger than the sum of its proper divisors (1800592071).

12604144441 is an equidigital number, since it uses as much as digits as its factorization.

12604144441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800592070.

The product of its (nonzero) digits is 12288, while the sum is 31.

The spelling of 12604144441 in words is "twelve billion, six hundred four million, one hundred forty-four thousand, four hundred forty-one".