23827239909 has 64 divisors (see below), whose sum is σ = 39642670080. Its totient is φ = 14017354560.

The previous prime is 23827239893. The next prime is 23827239911. The reversal of 23827239909 is 90993272832.

It is a happy number.

It is not a de Polignac number, because 23827239909 - 2⁴ = 23827239893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23827239929) 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 63 ways as a sum of consecutive naturals, for example, 5129542 + ... + 5134184.

It is an arithmetic number, because the mean of its divisors is an integer number (619416720).

Almost surely, 2^23827239909 is an apocalyptic number.

It is an amenable number.

23827239909 is a deficient number, since it is larger than the sum of its proper divisors (15815430171).

23827239909 is a wasteful number, since it uses less digits than its factorization.

23827239909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5167 (or 5161 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The spelling of 23827239909 in words is "twenty-three billion, eight hundred twenty-seven million, two hundred thirty-nine thousand, nine hundred nine".