13563597344 has 96 divisors (see below), whose sum is σ = 30200942016. Its totient is φ = 5941969920.

The previous prime is 13563597323. The next prime is 13563597347. The reversal of 13563597344 is 44379536531.

It is a junction number, because it is equal to n+sod(n) for n = 13563597292 and 13563597301.

It is not an unprimeable number, because it can be changed into a prime (13563597347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1388702 + ... + 1398434.

It is an arithmetic number, because the mean of its divisors is an integer number (314593146).

Almost surely, 2^13563597344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13563597344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15100471008).

13563597344 is an abundant number, since it is smaller than the sum of its proper divisors (16637344672).

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

13563597344 is a wasteful number, since it uses less digits than its factorization.

13563597344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9898 (or 9890 counting only the distinct ones).

The product of its digits is 4082400, while the sum is 50.

The spelling of 13563597344 in words is "thirteen billion, five hundred sixty-three million, five hundred ninety-seven thousand, three hundred forty-four".