23993829943 has 4 divisors (see below), whose sum is σ = 23994221328. Its totient is φ = 23993438560.

The previous prime is 23993829929. The next prime is 23993829961. The reversal of 23993829943 is 34992839932.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23993829943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23993829913) 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, 81538 + ... + 233743.

It is an arithmetic number, because the mean of its divisors is an integer number (5998555332).

Almost surely, 2^23993829943 is an apocalyptic number.

23993829943 is a deficient number, since it is larger than the sum of its proper divisors (391385).

23993829943 is an equidigital number, since it uses as much as digits as its factorization.

23993829943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391384.

The product of its digits is 22674816, while the sum is 61.

The spelling of 23993829943 in words is "twenty-three billion, nine hundred ninety-three million, eight hundred twenty-nine thousand, nine hundred forty-three".