42448685909 has 8 divisors (see below), whose sum is σ = 48514229568. Its totient is φ = 36383503680.

The previous prime is 42448685887. The next prime is 42448685921. The reversal of 42448685909 is 90958684424.

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 42448685909 - 2¹² = 42448681813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42448685969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243629 + ... + 379805.

It is an arithmetic number, because the mean of its divisors is an integer number (6064278696).

Almost surely, 2^42448685909 is an apocalyptic number.

It is an amenable number.

42448685909 is a deficient number, since it is larger than the sum of its proper divisors (6065543659).

42448685909 is a wasteful number, since it uses less digits than its factorization.

42448685909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180715.

The product of its (nonzero) digits is 19906560, while the sum is 59.

The spelling of 42448685909 in words is "forty-two billion, four hundred forty-eight million, six hundred eighty-five thousand, nine hundred nine".