16814236809 has 8 divisors (see below), whose sum is σ = 22940354272. Its totient is φ = 10948805280.

The previous prime is 16814236781. The next prime is 16814236819. The reversal of 16814236809 is 90863241861.

16814236809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 16814236809 - 2⁸ = 16814236553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16814236819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65171332 + ... + 65171589.

It is an arithmetic number, because the mean of its divisors is an integer number (2867544284).

Almost surely, 2^16814236809 is an apocalyptic number.

It is an amenable number.

16814236809 is a deficient number, since it is larger than the sum of its proper divisors (6126117463).

16814236809 is a wasteful number, since it uses less digits than its factorization.

16814236809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130342967.

The product of its (nonzero) digits is 497664, while the sum is 48.

The spelling of 16814236809 in words is "sixteen billion, eight hundred fourteen million, two hundred thirty-six thousand, eight hundred nine".