13204400052644 has 12 divisors (see below), whose sum is σ = 23145396181404. Its totient is φ = 6591429715104.

The previous prime is 13204400052631. The next prime is 13204400052647. The reversal of 13204400052644 is 44625000440231.

It can be written as a sum of positive squares in 2 ways, for example, as 66312430144 + 13138087622500 = 257512^2 + 3624650^2 .

It is not an unprimeable number, because it can be changed into a prime (13204400052647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2692575047 + ... + 2692579950.

It is an arithmetic number, because the mean of its divisors is an integer number (1928783015117).

Almost surely, 2^{13204400052644} is an apocalyptic number.

It is an amenable number.

13204400052644 is a deficient number, since it is larger than the sum of its proper divisors (9940996128760).

13204400052644 is a wasteful number, since it uses less digits than its factorization.

13204400052644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5385155614 (or 5385155612 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 13204400052644 its reverse (44625000440231), we get a palindrome (57829400492875).

The spelling of 13204400052644 in words is "thirteen trillion, two hundred four billion, four hundred million, fifty-two thousand, six hundred forty-four".