13244430544 has 20 divisors (see below), whose sum is σ = 25680550660. Its totient is φ = 6617191680.

The previous prime is 13244430541. The next prime is 13244430553. The reversal of 13244430544 is 44503444231.

It can be written as a sum of positive squares in 2 ways, for example, as 12321000000 + 923430544 = 111000^2 + 30388^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13244430541) 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, 292179 + ... + 334450.

It is an arithmetic number, because the mean of its divisors is an integer number (1284027533).

Almost surely, 2^13244430544 is an apocalyptic number.

It is an amenable number.

13244430544 is a deficient number, since it is larger than the sum of its proper divisors (12436120116).

13244430544 is a wasteful number, since it uses less digits than its factorization.

13244430544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627958 (or 627952 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 34.

Adding to 13244430544 its reverse (44503444231), we get a palindrome (57747874775).

The spelling of 13244430544 in words is "thirteen billion, two hundred forty-four million, four hundred thirty thousand, five hundred forty-four".