42112709809 has 8 divisors (see below), whose sum is σ = 46256523840. Its totient is φ = 38161631376.

The previous prime is 42112709773. The next prime is 42112709819. The reversal of 42112709809 is 90890721124.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42112709809 - 2¹⁵ = 42112677041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42112709819) 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 7 ways as a sum of consecutive naturals, for example, 48183442 + ... + 48184315.

It is an arithmetic number, because the mean of its divisors is an integer number (5782065480).

Almost surely, 2^42112709809 is an apocalyptic number.

It is an amenable number.

42112709809 is a deficient number, since it is larger than the sum of its proper divisors (4143814031).

42112709809 is a wasteful number, since it uses less digits than its factorization.

42112709809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96367799.

The product of its (nonzero) digits is 72576, while the sum is 43.

The spelling of 42112709809 in words is "forty-two billion, one hundred twelve million, seven hundred nine thousand, eight hundred nine".