42135144424 has 16 divisors (see below), whose sum is σ = 79075825920. Its totient is φ = 21048257520.

The previous prime is 42135144413. The next prime is 42135144427. The reversal of 42135144424 is 42444153124.

It is a self number, because there is not a number n which added to its sum of digits gives 42135144424.

It is not an unprimeable number, because it can be changed into a prime (42135144427) 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, 2405064 + ... + 2422519.

It is an arithmetic number, because the mean of its divisors is an integer number (4942239120).

Almost surely, 2^42135144424 is an apocalyptic number.

It is an amenable number.

42135144424 is a deficient number, since it is larger than the sum of its proper divisors (36940681496).

42135144424 is a wasteful number, since it uses less digits than its factorization.

42135144424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4828680 (or 4828676 counting only the distinct ones).

The product of its digits is 61440, while the sum is 34.

Adding to 42135144424 its reverse (42444153124), we get a palindrome (84579297548).

The spelling of 42135144424 in words is "forty-two billion, one hundred thirty-five million, one hundred forty-four thousand, four hundred twenty-four".