13529784648 has 32 divisors (see below), whose sum is σ = 33855644160. Its totient is φ = 4505770560.

The previous prime is 13529784647. The next prime is 13529784649. The reversal of 13529784648 is 84648792531.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13529784647) and next prime (13529784649).

It is not an unprimeable number, because it can be changed into a prime (13529784643) 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, 233223 + ... + 285398.

It is an arithmetic number, because the mean of its divisors is an integer number (1057988880).

Almost surely, 2^13529784648 is an apocalyptic number.

It is an amenable number.

13529784648 is an abundant number, since it is smaller than the sum of its proper divisors (20325859512).

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

13529784648 is a wasteful number, since it uses less digits than its factorization.

13529784648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519717 (or 519713 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 57.

The spelling of 13529784648 in words is "thirteen billion, five hundred twenty-nine million, seven hundred eighty-four thousand, six hundred forty-eight".