13529688804 has 18 divisors (see below), whose sum is σ = 34200046790. Its totient is φ = 4509896256.

The previous prime is 13529688803. The next prime is 13529688839. The reversal of 13529688804 is 40888692531.

It can be written as a sum of positive squares in only one way, i.e., 13458320100 + 71368704 = 116010^2 + 8448^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (13529688803) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 187912309 + ... + 187912380.

Almost surely, 2^13529688804 is an apocalyptic number.

It is an amenable number.

13529688804 is an abundant number, since it is smaller than the sum of its proper divisors (20670357986).

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

13529688804 is a wasteful number, since it uses less digits than its factorization.

13529688804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375824699 (or 375824694 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The spelling of 13529688804 in words is "thirteen billion, five hundred twenty-nine million, six hundred eighty-eight thousand, eight hundred four".