42042310209 has 12 divisors (see below), whose sum is σ = 61295332176. Its totient is φ = 27766260312.

The previous prime is 42042310199. The next prime is 42042310229. The reversal of 42042310209 is 90201324024.

42042310209 is a `hidden beast` number, since 4 + 20 + 423 + 10 + 209 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-42042310209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42042310229) 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 11 ways as a sum of consecutive naturals, for example, 21827859 + ... + 21829784.

It is an arithmetic number, because the mean of its divisors is an integer number (5107944348).

Almost surely, 2^42042310209 is an apocalyptic number.

It is an amenable number.

42042310209 is a deficient number, since it is larger than the sum of its proper divisors (19253021967).

42042310209 is a wasteful number, since it uses less digits than its factorization.

42042310209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43657756 (or 43657753 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The spelling of 42042310209 in words is "forty-two billion, forty-two million, three hundred ten thousand, two hundred nine".