42444468889 has 4 divisors (see below), whose sum is σ = 42444881424. Its totient is φ = 42444056356.

The previous prime is 42444468887. The next prime is 42444468901. The reversal of 42444468889 is 98886444424.

42444468889 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42444468889 - 2¹ = 42444468887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42444468881) 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, 88014 + ... + 304360.

It is an arithmetic number, because the mean of its divisors is an integer number (10611220356).

Almost surely, 2^42444468889 is an apocalyptic number.

It is an amenable number.

42444468889 is a deficient number, since it is larger than the sum of its proper divisors (412535).

42444468889 is a wasteful number, since it uses less digits than its factorization.

42444468889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412534.

The product of its digits is 56623104, while the sum is 61.

The spelling of 42444468889 in words is "forty-two billion, four hundred forty-four million, four hundred sixty-eight thousand, eight hundred eighty-nine".