13565794648 has 48 divisors (see below), whose sum is σ = 31145974200. Its totient is φ = 5507913600.

The previous prime is 13565794637. The next prime is 13565794679. The reversal of 13565794648 is 84649756531.

It is a junction number, because it is equal to n+sod(n) for n = 13565794592 and 13565794601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 903253 + ... + 918148.

Almost surely, 2^13565794648 is an apocalyptic number.

It is an amenable number.

13565794648 is an abundant number, since it is smaller than the sum of its proper divisors (17580179552).

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

13565794648 is a wasteful number, since it uses less digits than its factorization.

13565794648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821440 (or 1821429 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 58.

The spelling of 13565794648 in words is "thirteen billion, five hundred sixty-five million, seven hundred ninety-four thousand, six hundred forty-eight".