13444534401 has 4 divisors (see below), whose sum is σ = 17926045872. Its totient is φ = 8963022932.

The previous prime is 13444534373. The next prime is 13444534403. The reversal of 13444534401 is 10443544431.

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 13444534401 - 2³³ = 4854599809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13444534403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2240755731 + ... + 2240755736.

It is an arithmetic number, because the mean of its divisors is an integer number (4481511468).

Almost surely, 2^13444534401 is an apocalyptic number.

It is an amenable number.

13444534401 is a deficient number, since it is larger than the sum of its proper divisors (4481511471).

13444534401 is an equidigital number, since it uses as much as digits as its factorization.

13444534401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4481511470.

The product of its (nonzero) digits is 46080, while the sum is 33.

The spelling of 13444534401 in words is "thirteen billion, four hundred forty-four million, five hundred thirty-four thousand, four hundred one".