13605907528 has 8 divisors (see below), whose sum is σ = 25511076630. Its totient is φ = 6802953760.

The previous prime is 13605907487. The next prime is 13605907529. The reversal of 13605907528 is 82570950631.

13605907528 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6812521444 + 6793386084 = 82538^2 + 82422^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (13605907529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 850369213 + ... + 850369228.

Almost surely, 2^13605907528 is an apocalyptic number.

It is an amenable number.

13605907528 is a deficient number, since it is larger than the sum of its proper divisors (11905169102).

13605907528 is a wasteful number, since it uses less digits than its factorization.

13605907528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700738447 (or 1700738443 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 46.

The spelling of 13605907528 in words is "thirteen billion, six hundred five million, nine hundred seven thousand, five hundred twenty-eight".