213984016909 has 8 divisors (see below), whose sum is σ = 230994318240. Its totient is φ = 197052285936.

The previous prime is 213984016891. The next prime is 213984016937. The reversal of 213984016909 is 909610489312.

213984016909 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 a cyclic number.

It is not a de Polignac number, because 213984016909 - 2⁵ = 213984016877 is a prime.

It is a super-2 number, since 2×213984016909² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213984016969) 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, 19636927 + ... + 19647820.

It is an arithmetic number, because the mean of its divisors is an integer number (28874289780).

Almost surely, 2^213984016909 is an apocalyptic number.

It is an amenable number.

213984016909 is a deficient number, since it is larger than the sum of its proper divisors (17010301331).

213984016909 is a wasteful number, since it uses less digits than its factorization.

213984016909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39285179.

The product of its (nonzero) digits is 839808, while the sum is 52.

The spelling of 213984016909 in words is "two hundred thirteen billion, nine hundred eighty-four million, sixteen thousand, nine hundred nine".