13523453244 has 72 divisors (see below), whose sum is σ = 40766369280. Its totient is φ = 3695848992.

The previous prime is 13523453239. The next prime is 13523453261. The reversal of 13523453244 is 44235432531.

13523453244 is a `hidden beast` number, since 1 + 3 + 52 + 34 + 532 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 13523453199 and 13523453208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1160824 + ... + 1172415.

Almost surely, 2^13523453244 is an apocalyptic number.

13523453244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13523453244 is an abundant number, since it is smaller than the sum of its proper divisors (27242916036).

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

13523453244 is a wasteful number, since it uses less digits than its factorization.

13523453244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2333279 (or 2333274 counting only the distinct ones).

The product of its digits is 172800, while the sum is 36.

Adding to 13523453244 its reverse (44235432531), we get a palindrome (57758885775).

The spelling of 13523453244 in words is "thirteen billion, five hundred twenty-three million, four hundred fifty-three thousand, two hundred forty-four".