16868885183839 has 16 divisors (see below), whose sum is σ = 18271966612032. Its totient is φ = 15480876192768.

The previous prime is 16868885183837. The next prime is 16868885183849. The reversal of 16868885183839 is 93838158886861.

It is a cyclic number.

It is not a de Polignac number, because 16868885183839 - 2¹ = 16868885183837 is a prime.

It is a super-3 number, since 3×16868885183839³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16868885183837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123588559 + ... + 123724975.

It is an arithmetic number, because the mean of its divisors is an integer number (1141997913252).

Almost surely, 2^{16868885183839} is an apocalyptic number.

16868885183839 is a deficient number, since it is larger than the sum of its proper divisors (1403081428193).

16868885183839 is a wasteful number, since it uses less digits than its factorization.

16868885183839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191586.

The product of its digits is 3822059520, while the sum is 82.

The spelling of 16868885183839 in words is "sixteen trillion, eight hundred sixty-eight billion, eight hundred eighty-five million, one hundred eighty-three thousand, eight hundred thirty-nine".