13849646845 has 16 divisors (see below), whose sum is σ = 16948274112. Its totient is φ = 10862625280.

The previous prime is 13849646813. The next prime is 13849646927. The reversal of 13849646845 is 54864694831.

It is not a de Polignac number, because 13849646845 - 2⁵ = 13849646813 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13849646845.

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, 73012 + ... + 181741.

It is an arithmetic number, because the mean of its divisors is an integer number (1059267132).

Almost surely, 2^13849646845 is an apocalyptic number.

It is an amenable number.

13849646845 is a deficient number, since it is larger than the sum of its proper divisors (3098627267).

13849646845 is a wasteful number, since it uses less digits than its factorization.

13849646845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254972.

The product of its digits is 19906560, while the sum is 58.

The spelling of 13849646845 in words is "thirteen billion, eight hundred forty-nine million, six hundred forty-six thousand, eight hundred forty-five".