13280568448 has 64 divisors (see below), whose sum is σ = 30364012800. Its totient is φ = 5667766272.

The previous prime is 13280568401. The next prime is 13280568449. The reversal of 13280568448 is 84486508231.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (13280568449) 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, 183136 + ... + 245152.

It is an arithmetic number, because the mean of its divisors is an integer number (474437700).

Almost surely, 2^13280568448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13280568448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15182006400).

13280568448 is an abundant number, since it is smaller than the sum of its proper divisors (17083444352).

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

13280568448 is an equidigital number, since it uses as much as digits as its factorization.

13280568448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62277 (or 62265 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 49.

The spelling of 13280568448 in words is "thirteen billion, two hundred eighty million, five hundred sixty-eight thousand, four hundred forty-eight".