42434443423 has 8 divisors (see below), whose sum is σ = 44356980096. Its totient is φ = 40518370200.

The previous prime is 42434443417. The next prime is 42434443439. The reversal of 42434443423 is 32434443424.

42434443423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42434443423 - 2²⁵ = 42400888991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42434443483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1602433 + ... + 1628698.

It is an arithmetic number, because the mean of its divisors is an integer number (5544622512).

Almost surely, 2^42434443423 is an apocalyptic number.

42434443423 is a deficient number, since it is larger than the sum of its proper divisors (1922536673).

42434443423 is a wasteful number, since it uses less digits than its factorization.

42434443423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3231725.

The product of its digits is 442368, while the sum is 37.

Adding to 42434443423 its reverse (32434443424), we get a palindrome (74868886847).

Subtracting from 42434443423 its reverse (32434443424), we obtain a palindrome (9999999999).

The spelling of 42434443423 in words is "forty-two billion, four hundred thirty-four million, four hundred forty-three thousand, four hundred twenty-three".