42944011045 has 24 divisors (see below), whose sum is σ = 58014738936. Its totient is φ = 30333671808.

The previous prime is 42944011031. The next prime is 42944011051. The reversal of 42944011045 is 54011044924.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7772009281 + 35172001764 = 88159^2 + 187542^2 .

It is not a de Polignac number, because 42944011045 - 2⁷ = 42944010917 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 42944011045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 590074 + ... + 658843.

It is an arithmetic number, because the mean of its divisors is an integer number (2417280789).

Almost surely, 2^42944011045 is an apocalyptic number.

It is an amenable number.

42944011045 is a deficient number, since it is larger than the sum of its proper divisors (15070727891).

42944011045 is a wasteful number, since it uses less digits than its factorization.

42944011045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248981 (or 1248958 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

Adding to 42944011045 its reverse (54011044924), we get a palindrome (96955055969).

The spelling of 42944011045 in words is "forty-two billion, nine hundred forty-four million, eleven thousand, forty-five".