13209028648 has 16 divisors (see below), whose sum is σ = 24856344180. Its totient is φ = 6580670208.

The previous prime is 13209028631. The next prime is 13209028673. The reversal of 13209028648 is 84682090231.

It can be written as a sum of positive squares in 2 ways, for example, as 12773972484 + 435056164 = 113022^2 + 20858^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2978161 + ... + 2982592.

Almost surely, 2^13209028648 is an apocalyptic number.

It is an amenable number.

13209028648 is a deficient number, since it is larger than the sum of its proper divisors (11647315532).

13209028648 is a wasteful number, since it uses less digits than its factorization.

13209028648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5961036 (or 5961032 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The spelling of 13209028648 in words is "thirteen billion, two hundred nine million, twenty-eight thousand, six hundred forty-eight".