13144489441 has 4 divisors (see below), whose sum is σ = 13169622832. Its totient is φ = 13119356052.

The previous prime is 13144489439. The next prime is 13144489481. The reversal of 13144489441 is 14498444131.

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 13144489441 - 2¹ = 13144489439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13144489481) 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, 12565911 + ... + 12566956.

It is an arithmetic number, because the mean of its divisors is an integer number (3292405708).

Almost surely, 2^13144489441 is an apocalyptic number.

It is an amenable number.

13144489441 is a deficient number, since it is larger than the sum of its proper divisors (25133391).

13144489441 is an equidigital number, since it uses as much as digits as its factorization.

13144489441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25133390.

The product of its digits is 221184, while the sum is 43.

The spelling of 13144489441 in words is "thirteen billion, one hundred forty-four million, four hundred eighty-nine thousand, four hundred forty-one".