13213505985528 has 64 divisors (see below), whose sum is σ = 34899942528000. Its totient is φ = 4162141273472.

The previous prime is 13213505985503. The next prime is 13213505985613. The reversal of 13213505985528 is 82558950531231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201934548 + ... + 201999971.

It is an arithmetic number, because the mean of its divisors is an integer number (545311602000).

Almost surely, 2^{13213505985528} is an apocalyptic number.

It is an amenable number.

13213505985528 is an abundant number, since it is smaller than the sum of its proper divisors (21686436542472).

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

13213505985528 is a wasteful number, since it uses less digits than its factorization.

13213505985528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403934604 (or 403934600 counting only the distinct ones).

The product of its (nonzero) digits is 12960000, while the sum is 57.

The spelling of 13213505985528 in words is "thirteen trillion, two hundred thirteen billion, five hundred five million, nine hundred eighty-five thousand, five hundred twenty-eight".