23842443823 has 4 divisors (see below), whose sum is σ = 26009938728. Its totient is φ = 21674948920.

The previous prime is 23842443809. The next prime is 23842443827. The reversal of 23842443823 is 32834424832.

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

It is a cyclic number.

It is not a de Polignac number, because 23842443823 - 2²⁹ = 23305572911 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 23842443823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23842443827) 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 3 ways as a sum of consecutive naturals, for example, 1083747436 + ... + 1083747457.

It is an arithmetic number, because the mean of its divisors is an integer number (6502484682).

Almost surely, 2^23842443823 is an apocalyptic number.

23842443823 is a deficient number, since it is larger than the sum of its proper divisors (2167494905).

23842443823 is a wasteful number, since it uses less digits than its factorization.

23842443823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2167494904.

The product of its digits is 884736, while the sum is 43.

The spelling of 23842443823 in words is "twenty-three billion, eight hundred forty-two million, four hundred forty-three thousand, eight hundred twenty-three".