24042821209 has 4 divisors (see below), whose sum is σ = 26228532240. Its totient is φ = 21857110180.

The previous prime is 24042821197. The next prime is 24042821213. The reversal of 24042821209 is 90212824042.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24042821209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (24042821279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1092855499 + ... + 1092855520.

It is an arithmetic number, because the mean of its divisors is an integer number (6557133060).

Almost surely, 2^24042821209 is an apocalyptic number.

It is an amenable number.

24042821209 is a deficient number, since it is larger than the sum of its proper divisors (2185711031).

24042821209 is a wasteful number, since it uses less digits than its factorization.

24042821209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2185711030.

The product of its (nonzero) digits is 18432, while the sum is 34.

The spelling of 24042821209 in words is "twenty-four billion, forty-two million, eight hundred twenty-one thousand, two hundred nine".