42144424423 has 4 divisors (see below), whose sum is σ = 42147131128. Its totient is φ = 42141717720.

The previous prime is 42144424403. The next prime is 42144424471. The reversal of 42144424423 is 32442444124.

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-42144424423 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 (42144424403) 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, 1329861 + ... + 1361182.

It is an arithmetic number, because the mean of its divisors is an integer number (10536782782).

Almost surely, 2^42144424423 is an apocalyptic number.

42144424423 is a deficient number, since it is larger than the sum of its proper divisors (2706705).

42144424423 is a wasteful number, since it uses less digits than its factorization.

42144424423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2706704.

The product of its digits is 98304, while the sum is 34.

Adding to 42144424423 its reverse (32442444124), we get a palindrome (74586868547).

The spelling of 42144424423 in words is "forty-two billion, one hundred forty-four million, four hundred twenty-four thousand, four hundred twenty-three".