13523431472 has 20 divisors (see below), whose sum is σ = 26840714376. Its totient is φ = 6596795520.

The previous prime is 13523431451. The next prime is 13523431489. The reversal of 13523431472 is 27413432531.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10306838 + ... + 10308149.

Almost surely, 2^13523431472 is an apocalyptic number.

It is an amenable number.

13523431472 is a deficient number, since it is larger than the sum of its proper divisors (13317282904).

13523431472 is a wasteful number, since it uses less digits than its factorization.

13523431472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20615036 (or 20615030 counting only the distinct ones).

The product of its digits is 60480, while the sum is 35.

The spelling of 13523431472 in words is "thirteen billion, five hundred twenty-three million, four hundred thirty-one thousand, four hundred seventy-two".