13444250521 has 8 divisors (see below), whose sum is σ = 14479383744. Its totient is φ = 12409254480.

The previous prime is 13444250503. The next prime is 13444250543. The reversal of 13444250521 is 12505244431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13444250521 - 2⁹ = 13444250009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13444230521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267990 + ... + 314176.

It is an arithmetic number, because the mean of its divisors is an integer number (1809922968).

Almost surely, 2^13444250521 is an apocalyptic number.

It is an amenable number.

13444250521 is a deficient number, since it is larger than the sum of its proper divisors (1035133223).

13444250521 is a wasteful number, since it uses less digits than its factorization.

13444250521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68591.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 13444250521 its reverse (12505244431), we get a palindrome (25949494952).

The spelling of 13444250521 in words is "thirteen billion, four hundred forty-four million, two hundred fifty thousand, five hundred twenty-one".