13581368735 has 16 divisors (see below), whose sum is σ = 17782060032. Its totient is φ = 9875796000.

The previous prime is 13581368719. The next prime is 13581368791. The reversal of 13581368735 is 53786318531.

It is not a de Polignac number, because 13581368735 - 2⁴ = 13581368719 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 420410 + ... + 451560.

It is an arithmetic number, because the mean of its divisors is an integer number (1111378752).

Almost surely, 2^13581368735 is an apocalyptic number.

13581368735 is a deficient number, since it is larger than the sum of its proper divisors (4200691297).

13581368735 is a wasteful number, since it uses less digits than its factorization.

13581368735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39094.

The product of its digits is 1814400, while the sum is 50.

The spelling of 13581368735 in words is "thirteen billion, five hundred eighty-one million, three hundred sixty-eight thousand, seven hundred thirty-five".