42144423524 has 18 divisors (see below), whose sum is σ = 85794005430. Its totient is φ = 18061895712.

The previous prime is 42144423511. The next prime is 42144423527. The reversal of 42144423524 is 42532444124.

It can be written as a sum of positive squares in only one way, i.e., 31927257124 + 10217166400 = 178682^2 + 101080^2 .

It is not an unprimeable number, because it can be changed into a prime (42144423527) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 107511089 + ... + 107511480.

It is an arithmetic number, because the mean of its divisors is an integer number (4766333635).

Almost surely, 2^42144423524 is an apocalyptic number.

It is an amenable number.

42144423524 is an abundant number, since it is smaller than the sum of its proper divisors (43649581906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42144423524 is a wasteful number, since it uses less digits than its factorization.

42144423524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215022587 (or 215022578 counting only the distinct ones).

The product of its digits is 122880, while the sum is 35.

Adding to 42144423524 its reverse (42532444124), we get a palindrome (84676867648).

The spelling of 42144423524 in words is "forty-two billion, one hundred forty-four million, four hundred twenty-three thousand, five hundred twenty-four".