228743347823 has 4 divisors (see below), whose sum is σ = 229551628488. Its totient is φ = 227935067160.

The previous prime is 228743347783. The next prime is 228743347837. The reversal of 228743347823 is 328743347822.

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 228743347823 - 2¹⁸ = 228743085679 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 (228743347853) 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, 404139908 + ... + 404140473.

It is an arithmetic number, because the mean of its divisors is an integer number (57387907122).

Almost surely, 2^228743347823 is an apocalyptic number.

228743347823 is a deficient number, since it is larger than the sum of its proper divisors (808280665).

228743347823 is an equidigital number, since it uses as much as digits as its factorization.

228743347823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808280664.

The product of its digits is 10838016, while the sum is 53.

Subtracting 228743347823 from its reverse (328743347822), we obtain a palindrome (99999999999).

The spelling of 228743347823 in words is "two hundred twenty-eight billion, seven hundred forty-three million, three hundred forty-seven thousand, eight hundred twenty-three".