23959406249 has 4 divisors (see below), whose sum is σ = 24134292564. Its totient is φ = 23784519936.

The previous prime is 23959406243. The next prime is 23959406287. The reversal of 23959406249 is 94260495932.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18508242025 + 5451164224 = 136045^2 + 73832^2 .

It is a cyclic number.

It is not a de Polignac number, because 23959406249 - 2³² = 19664438953 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23959406249.

It is not an unprimeable number, because it can be changed into a prime (23959406243) 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, 87442952 + ... + 87443225.

It is an arithmetic number, because the mean of its divisors is an integer number (6033573141).

Almost surely, 2^23959406249 is an apocalyptic number.

It is an amenable number.

23959406249 is a deficient number, since it is larger than the sum of its proper divisors (174886315).

23959406249 is a wasteful number, since it uses less digits than its factorization.

23959406249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174886314.

The product of its (nonzero) digits is 4199040, while the sum is 53.

The spelling of 23959406249 in words is "twenty-three billion, nine hundred fifty-nine million, four hundred six thousand, two hundred forty-nine".