16854810009 has 8 divisors (see below), whose sum is σ = 22510475232. Its totient is φ = 11217842400.

The previous prime is 16854809989. The next prime is 16854810047. The reversal of 16854810009 is 90001845861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16854810009 - 2⁵ = 16854809977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16854810079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4672299 + ... + 4675904.

It is an arithmetic number, because the mean of its divisors is an integer number (2813809404).

Almost surely, 2^16854810009 is an apocalyptic number.

It is an amenable number.

16854810009 is a deficient number, since it is larger than the sum of its proper divisors (5655665223).

16854810009 is an equidigital number, since it uses as much as digits as its factorization.

16854810009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9348807.

The product of its (nonzero) digits is 69120, while the sum is 42.

The spelling of 16854810009 in words is "sixteen billion, eight hundred fifty-four million, eight hundred ten thousand, nine".