42425452423 has 4 divisors (see below), whose sum is σ = 42426570168. Its totient is φ = 42424334680.

The previous prime is 42425452409. The next prime is 42425452427. The reversal of 42425452423 is 32425452424.

It is a happy number.

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 42425452423 - 2⁹ = 42425451911 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 (42425452427) 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, 499861 + ... + 578542.

It is an arithmetic number, because the mean of its divisors is an integer number (10606642542).

Almost surely, 2^42425452423 is an apocalyptic number.

42425452423 is a deficient number, since it is larger than the sum of its proper divisors (1117745).

42425452423 is a wasteful number, since it uses less digits than its factorization.

42425452423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117744.

The product of its digits is 307200, while the sum is 37.

Subtracting from 42425452423 its reverse (32425452424), we obtain a palindrome (9999999999).

The spelling of 42425452423 in words is "forty-two billion, four hundred twenty-five million, four hundred fifty-two thousand, four hundred twenty-three".