13204562644 has 48 divisors (see below), whose sum is σ = 28722266496. Its totient is φ = 5172048000.

The previous prime is 13204562633. The next prime is 13204562647. The reversal of 13204562644 is 44626540231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13204562647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142822 + ... + 216349.

It is an arithmetic number, because the mean of its divisors is an integer number (598380552).

Almost surely, 2^13204562644 is an apocalyptic number.

13204562644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13204562644 is an abundant number, since it is smaller than the sum of its proper divisors (15517703852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13204562644 is a wasteful number, since it uses less digits than its factorization.

13204562644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359296 (or 359294 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 13204562644 in words is "thirteen billion, two hundred four million, five hundred sixty-two thousand, six hundred forty-four".