13891908589 has 16 divisors (see below), whose sum is σ = 15096567808. Its totient is φ = 12706932672.

The previous prime is 13891908587. The next prime is 13891908601. The reversal of 13891908589 is 98580919831.

It is a cyclic number.

It is not a de Polignac number, because 13891908589 - 2¹ = 13891908587 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13891908587) by changing a digit.

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, 1492819 + ... + 1502095.

It is an arithmetic number, because the mean of its divisors is an integer number (943535488).

Almost surely, 2^13891908589 is an apocalyptic number.

It is an amenable number.

13891908589 is a deficient number, since it is larger than the sum of its proper divisors (1204659219).

13891908589 is a wasteful number, since it uses less digits than its factorization.

13891908589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10324.

The product of its (nonzero) digits is 5598720, while the sum is 61.

The spelling of 13891908589 in words is "thirteen billion, eight hundred ninety-one million, nine hundred eight thousand, five hundred eighty-nine".