23834239009 has 6 divisors (see below), whose sum is σ = 27725543394. Its totient is φ = 20429347680.

The previous prime is 23834239001. The next prime is 23834239031. The reversal of 23834239009 is 90093243832.

It can be written as a sum of positive squares in only one way, i.e., 12122670609 + 11711568400 = 110103^2 + 108220^2 .

It is not a de Polignac number, because 23834239009 - 2³ = 23834239001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23834239001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 243206472 + ... + 243206569.

It is an arithmetic number, because the mean of its divisors is an integer number (4620923899).

Almost surely, 2^23834239009 is an apocalyptic number.

It is an amenable number.

23834239009 is a deficient number, since it is larger than the sum of its proper divisors (3891304385).

23834239009 is an equidigital number, since it uses as much as digits as its factorization.

23834239009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486413055 (or 486413048 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 43.

The spelling of 23834239009 in words is "twenty-three billion, eight hundred thirty-four million, two hundred thirty-nine thousand, nine".