42444020011 has 4 divisors (see below), whose sum is σ = 42833414800. Its totient is φ = 42054625224.

The previous prime is 42444019967. The next prime is 42444020057. The reversal of 42444020011 is 11002044424.

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 42444020011 - 2²⁹ = 41907149099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42444020111) 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 3 ways as a sum of consecutive naturals, for example, 194697231 + ... + 194697448.

It is an arithmetic number, because the mean of its divisors is an integer number (10708353700).

Almost surely, 2^42444020011 is an apocalyptic number.

42444020011 is a deficient number, since it is larger than the sum of its proper divisors (389394789).

42444020011 is a wasteful number, since it uses less digits than its factorization.

42444020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389394788.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 42444020011 its reverse (11002044424), we get a palindrome (53446064435).

The spelling of 42444020011 in words is "forty-two billion, four hundred forty-four million, twenty thousand, eleven".