23981675329 has 4 divisors (see below), whose sum is σ = 23993710276. Its totient is φ = 23969640384.

The previous prime is 23981675321. The next prime is 23981675353. The reversal of 23981675329 is 92357618932.

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 21963240000 + 2018435329 = 148200^2 + 44927^2 .

It is a cyclic number.

It is not a de Polignac number, because 23981675329 - 2³ = 23981675321 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 23981675329.

It is not an unprimeable number, because it can be changed into a prime (23981675321) 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 3 ways as a sum of consecutive naturals, for example, 6014484 + ... + 6018469.

It is an arithmetic number, because the mean of its divisors is an integer number (5998427569).

Almost surely, 2^23981675329 is an apocalyptic number.

It is an amenable number.

23981675329 is a deficient number, since it is larger than the sum of its proper divisors (12034947).

23981675329 is a wasteful number, since it uses less digits than its factorization.

23981675329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12034946.

The product of its digits is 4898880, while the sum is 55.

The spelling of 23981675329 in words is "twenty-three billion, nine hundred eighty-one million, six hundred seventy-five thousand, three hundred twenty-nine".