13778678593 has 16 divisors (see below), whose sum is σ = 14325751296. Its totient is φ = 13238248320.

The previous prime is 13778678569. The next prime is 13778678629. The reversal of 13778678593 is 39587687731.

13778678593 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13778678593 - 2²⁹ = 13241807681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13778678513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5077405 + ... + 5080117.

It is an arithmetic number, because the mean of its divisors is an integer number (895359456).

Almost surely, 2^13778678593 is an apocalyptic number.

It is an amenable number.

13778678593 is a deficient number, since it is larger than the sum of its proper divisors (547072703).

13778678593 is a wasteful number, since it uses less digits than its factorization.

13778678593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3864.

The product of its digits is 53343360, while the sum is 64.

The spelling of 13778678593 in words is "thirteen billion, seven hundred seventy-eight million, six hundred seventy-eight thousand, five hundred ninety-three".