23989211409 has 8 divisors (see below), whose sum is σ = 31987134720. Its totient is φ = 15992047856.

The previous prime is 23989211401. The next prime is 23989211473. The reversal of 23989211409 is 90411298932.

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 23989211409 - 2³ = 23989211401 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23989211401) 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, 111654 + ... + 245855.

It is an arithmetic number, because the mean of its divisors is an integer number (3998391840).

Almost surely, 2^23989211409 is an apocalyptic number.

It is an amenable number.

23989211409 is a deficient number, since it is larger than the sum of its proper divisors (7997923311).

23989211409 is a wasteful number, since it uses less digits than its factorization.

23989211409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379879.

The product of its (nonzero) digits is 279936, while the sum is 48.

The spelling of 23989211409 in words is "twenty-three billion, nine hundred eighty-nine million, two hundred eleven thousand, four hundred nine".