13531353424 has 40 divisors (see below), whose sum is σ = 27647630240. Its totient is φ = 6397792128.

The previous prime is 13531353421. The next prime is 13531353457. The reversal of 13531353424 is 42435313531.

It is a self number, because there is not a number n which added to its sum of digits gives 13531353424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531353421) 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 7 ways as a sum of consecutive naturals, for example, 125602 + ... + 206974.

It is an arithmetic number, because the mean of its divisors is an integer number (691190756).

Almost surely, 2^13531353424 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 13531353424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13823815120).

13531353424 is an abundant number, since it is smaller than the sum of its proper divisors (14116276816).

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

13531353424 is a wasteful number, since it uses less digits than its factorization.

13531353424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81947 (or 81941 counting only the distinct ones).

The product of its digits is 64800, while the sum is 34.

Adding to 13531353424 its reverse (42435313531), we get a palindrome (55966666955).

The spelling of 13531353424 in words is "thirteen billion, five hundred thirty-one million, three hundred fifty-three thousand, four hundred twenty-four".