16854682609 has 16 divisors (see below), whose sum is σ = 18068807680. Its totient is φ = 15693788880.

The previous prime is 16854682591. The next prime is 16854682613. The reversal of 16854682609 is 90628645861.

It is a cyclic number.

It is not a de Polignac number, because 16854682609 - 2⁵ = 16854682577 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 16854682609.

It is not an unprimeable number, because it can be changed into a prime (16854682679) 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, 5049 + ... + 183670.

It is an arithmetic number, because the mean of its divisors is an integer number (1129300480).

Almost surely, 2^16854682609 is an apocalyptic number.

It is an amenable number.

16854682609 is a deficient number, since it is larger than the sum of its proper divisors (1214125071).

16854682609 is a wasteful number, since it uses less digits than its factorization.

16854682609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188860.

The product of its (nonzero) digits is 4976640, while the sum is 55.

The spelling of 16854682609 in words is "sixteen billion, eight hundred fifty-four million, six hundred eighty-two thousand, six hundred nine".