42239688111 has 14 divisors (see below), whose sum is σ = 63330562280. Its totient is φ = 28159791588.

The previous prime is 42239688079. The next prime is 42239688119. The reversal of 42239688111 is 11188693224.

42239688111 is a `hidden beast` number, since 422 + 39 + 6 + 88 + 111 = 666.

It is not a de Polignac number, because 42239688111 - 2⁵ = 42239688079 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 (42239688119) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 28970251 + ... + 28971708.

Almost surely, 2^42239688111 is an apocalyptic number.

42239688111 is a deficient number, since it is larger than the sum of its proper divisors (21090874169).

42239688111 is an frugal number, since it uses more digits than its factorization.

42239688111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57941977 (or 57941962 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The spelling of 42239688111 in words is "forty-two billion, two hundred thirty-nine million, six hundred eighty-eight thousand, one hundred eleven".