13634521532 has 24 divisors (see below), whose sum is σ = 24918254592. Its totient is φ = 6515506800.

The previous prime is 13634521531. The next prime is 13634521561. The reversal of 13634521532 is 23512543631.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13634521492 and 13634521501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13634521531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53057 + ... + 173447.

It is an arithmetic number, because the mean of its divisors is an integer number (1038260608).

Almost surely, 2^13634521532 is an apocalyptic number.

It is an amenable number.

13634521532 is a deficient number, since it is larger than the sum of its proper divisors (11283733060).

13634521532 is a wasteful number, since it uses less digits than its factorization.

13634521532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121649 (or 121647 counting only the distinct ones).

The product of its digits is 64800, while the sum is 35.

The spelling of 13634521532 in words is "thirteen billion, six hundred thirty-four million, five hundred twenty-one thousand, five hundred thirty-two".