42565234442 has 32 divisors (see below), whose sum is σ = 66098039040. Its totient is φ = 20546654400.

The previous prime is 42565234433. The next prime is 42565234447. The reversal of 42565234442 is 24443256524.

It is a self number, because there is not a number n which added to its sum of digits gives 42565234442.

It is not an unprimeable number, because it can be changed into a prime (42565234447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2316692 + ... + 2334992.

It is an arithmetic number, because the mean of its divisors is an integer number (2065563720).

Almost surely, 2^42565234442 is an apocalyptic number.

42565234442 is a deficient number, since it is larger than the sum of its proper divisors (23532804598).

42565234442 is a wasteful number, since it uses less digits than its factorization.

42565234442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18686.

The product of its digits is 921600, while the sum is 41.

The spelling of 42565234442 in words is "forty-two billion, five hundred sixty-five million, two hundred thirty-four thousand, four hundred forty-two".