13648067789 has 16 divisors (see below), whose sum is σ = 15121524528. Its totient is φ = 12262228992.

The previous prime is 13648067767. The next prime is 13648067791. The reversal of 13648067789 is 98776084631.

It can be written as a sum of positive squares in 8 ways, for example, as 5879055625 + 7769012164 = 76675^2 + 88142^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13648067789 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13648067749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171362 + ... + 238035.

It is an arithmetic number, because the mean of its divisors is an integer number (945095283).

Almost surely, 2^13648067789 is an apocalyptic number.

It is an amenable number.

13648067789 is a deficient number, since it is larger than the sum of its proper divisors (1473456739).

13648067789 is a wasteful number, since it uses less digits than its factorization.

13648067789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409504.

The product of its (nonzero) digits is 12192768, while the sum is 59.

The spelling of 13648067789 in words is "thirteen billion, six hundred forty-eight million, sixty-seven thousand, seven hundred eighty-nine".