16327391209 has 8 divisors (see below), whose sum is σ = 17845498368. Its totient is φ = 14871247680.

The previous prime is 16327391159. The next prime is 16327391251. The reversal of 16327391209 is 90219372361.

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

It is a cyclic number.

It is not a de Polignac number, because 16327391209 - 2¹¹ = 16327389161 is a prime.

It is a super-3 number, since 3×16327391209³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16327391309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15490357 + ... + 15491410.

It is an arithmetic number, because the mean of its divisors is an integer number (2230687296).

Almost surely, 2^16327391209 is an apocalyptic number.

It is an amenable number.

16327391209 is a deficient number, since it is larger than the sum of its proper divisors (1518107159).

16327391209 is a wasteful number, since it uses less digits than its factorization.

16327391209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30981815.

The product of its (nonzero) digits is 122472, while the sum is 43.

The spelling of 16327391209 in words is "sixteen billion, three hundred twenty-seven million, three hundred ninety-one thousand, two hundred nine".