42444441999 has 24 divisors (see below), whose sum is σ = 61958554112. Its totient is φ = 27996503040.

The previous prime is 42444441979. The next prime is 42444442031. The reversal of 42444441999 is 99914444424.

42444441999 is a `hidden beast` number, since 4 + 2 + 4 + 4 + 444 + 199 + 9 = 666.

It is not a de Polignac number, because 42444441999 - 2¹⁷ = 42444310927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42444441929) 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 23 ways as a sum of consecutive naturals, for example, 5470707 + ... + 5478459.

Almost surely, 2^42444441999 is an apocalyptic number.

42444441999 is a deficient number, since it is larger than the sum of its proper divisors (19514112113).

42444441999 is a wasteful number, since it uses less digits than its factorization.

42444441999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14127 (or 14124 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 54.

The spelling of 42444441999 in words is "forty-two billion, four hundred forty-four million, four hundred forty-one thousand, nine hundred ninety-nine".