13509364448 has 24 divisors (see below), whose sum is σ = 26658012528. Its totient is φ = 6739075584.

The previous prime is 13509364447. The next prime is 13509364471. The reversal of 13509364448 is 84446390531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13509364447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473636 + ... + 501347.

It is an arithmetic number, because the mean of its divisors is an integer number (1110750522).

Almost surely, 2^13509364448 is an apocalyptic number.

It is an amenable number.

13509364448 is a deficient number, since it is larger than the sum of its proper divisors (13148648080).

13509364448 is an equidigital number, since it uses as much as digits as its factorization.

13509364448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975426 (or 975418 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 47.

The spelling of 13509364448 in words is "thirteen billion, five hundred nine million, three hundred sixty-four thousand, four hundred forty-eight".