42565442107 has 4 divisors (see below), whose sum is σ = 42649068240. Its totient is φ = 42481815976.

The previous prime is 42565442093. The next prime is 42565442173. The reversal of 42565442107 is 70124456524.

It is a happy number.

42565442107 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42565442107 - 2⁷ = 42565441979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42565442107.

It is not an unprimeable number, because it can be changed into a prime (42565449107) 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, 41812303 + ... + 41813320.

It is an arithmetic number, because the mean of its divisors is an integer number (10662267060).

Almost surely, 2^42565442107 is an apocalyptic number.

42565442107 is a deficient number, since it is larger than the sum of its proper divisors (83626133).

42565442107 is an equidigital number, since it uses as much as digits as its factorization.

42565442107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83626132.

The product of its (nonzero) digits is 268800, while the sum is 40.

The spelling of 42565442107 in words is "forty-two billion, five hundred sixty-five million, four hundred forty-two thousand, one hundred seven".