13578845205 has 16 divisors (see below), whose sum is σ = 21727598400. Its totient is φ = 7241568768.

The previous prime is 13578845191. The next prime is 13578845213. The reversal of 13578845205 is 50254887531.

13578845205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13578845205 - 2¹² = 13578841109 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 413221 + ... + 444869.

It is an arithmetic number, because the mean of its divisors is an integer number (1357974900).

Almost surely, 2^13578845205 is an apocalyptic number.

13578845205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13578845205 is a deficient number, since it is larger than the sum of its proper divisors (8148753195).

13578845205 is a wasteful number, since it uses less digits than its factorization.

13578845205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60260.

The product of its (nonzero) digits is 1344000, while the sum is 48.

The spelling of 13578845205 in words is "thirteen billion, five hundred seventy-eight million, eight hundred forty-five thousand, two hundred five".