16868858685 has 32 divisors (see below), whose sum is σ = 32660381952. Its totient is φ = 7257861120.

The previous prime is 16868858683. The next prime is 16868858701. The reversal of 16868858685 is 58685886861.

It is not a de Polignac number, because 16868858685 - 2¹ = 16868858683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16868858683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4723386 + ... + 4726955.

It is an arithmetic number, because the mean of its divisors is an integer number (1020636936).

Almost surely, 2^16868858685 is an apocalyptic number.

16868858685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16868858685 is a deficient number, since it is larger than the sum of its proper divisors (15791523267).

16868858685 is a wasteful number, since it uses less digits than its factorization.

16868858685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9450373.

The product of its digits is 176947200, while the sum is 69.

The spelling of 16868858685 in words is "sixteen billion, eight hundred sixty-eight million, eight hundred fifty-eight thousand, six hundred eighty-five".