42405445223 has 4 divisors (see below), whose sum is σ = 42405857208. Its totient is φ = 42405033240.

The previous prime is 42405445211. The next prime is 42405445261. The reversal of 42405445223 is 32254450424.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42405445223 - 2¹⁰ = 42405444199 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 (42405445723) 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, 95165 + ... + 306377.

It is an arithmetic number, because the mean of its divisors is an integer number (10601464302).

Almost surely, 2^42405445223 is an apocalyptic number.

42405445223 is a deficient number, since it is larger than the sum of its proper divisors (411985).

42405445223 is a wasteful number, since it uses less digits than its factorization.

42405445223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411984.

The product of its (nonzero) digits is 153600, while the sum is 35.

Adding to 42405445223 its reverse (32254450424), we get a palindrome (74659895647).

The spelling of 42405445223 in words is "forty-two billion, four hundred five million, four hundred forty-five thousand, two hundred twenty-three".