13444451453541 has 32 divisors (see below), whose sum is σ = 18155935065600. Its totient is φ = 8848729612800.

The previous prime is 13444451453513. The next prime is 13444451453557. The reversal of 13444451453541 is 14535415444431.

It is a happy number.

It is not a de Polignac number, because 13444451453541 - 2⁵ = 13444451453509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13444451453941) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 280764921 + ... + 280812801.

It is an arithmetic number, because the mean of its divisors is an integer number (567372970800).

Almost surely, 2^{13444451453541} is an apocalyptic number.

It is an amenable number.

13444451453541 is a deficient number, since it is larger than the sum of its proper divisors (4711483612059).

13444451453541 is a wasteful number, since it uses less digits than its factorization.

13444451453541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51837.

The product of its digits is 4608000, while the sum is 48.

Adding to 13444451453541 its reverse (14535415444431), we get a palindrome (27979866897972).

The spelling of 13444451453541 in words is "thirteen trillion, four hundred forty-four billion, four hundred fifty-one million, four hundred fifty-three thousand, five hundred forty-one".