42044153642 has 8 divisors (see below), whose sum is σ = 64604431332. Its totient is φ = 20509343200.

The previous prime is 42044153623. The next prime is 42044153647. The reversal of 42044153642 is 24635144024.

42044153642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 36795296041 + 5248857601 = 191821^2 + 72449^2 .

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

It is not an unprimeable number, because it can be changed into a prime (42044153647) 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, 256366709 + ... + 256366872.

Almost surely, 2^42044153642 is an apocalyptic number.

42044153642 is a deficient number, since it is larger than the sum of its proper divisors (22560277690).

42044153642 is a wasteful number, since it uses less digits than its factorization.

42044153642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512733624.

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 42044153642 its reverse (24635144024), we get a palindrome (66679297666).

The spelling of 42044153642 in words is "forty-two billion, forty-four million, one hundred fifty-three thousand, six hundred forty-two".