13581532496 has 20 divisors (see below), whose sum is σ = 30073393632. Its totient is φ = 5820656736.

The previous prime is 13581532477. The next prime is 13581532603. The reversal of 13581532496 is 69423518531.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 13581532496.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60631730 + ... + 60631953.

Almost surely, 2^13581532496 is an apocalyptic number.

13581532496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13581532496 is an abundant number, since it is smaller than the sum of its proper divisors (16491861136).

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

13581532496 is a wasteful number, since it uses less digits than its factorization.

13581532496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121263698 (or 121263692 counting only the distinct ones).

The product of its digits is 777600, while the sum is 47.

The spelling of 13581532496 in words is "thirteen billion, five hundred eighty-one million, five hundred thirty-two thousand, four hundred ninety-six".