9042126809 has 8 divisors (see below), whose sum is σ = 9522891840. Its totient is φ = 8561848176.

The previous prime is 9042126803. The next prime is 9042126811. The reversal of 9042126809 is 9086212409.

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 9042126809 - 2³² = 4747159513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9042126803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83117 + ... + 158090.

It is an arithmetic number, because the mean of its divisors is an integer number (1190361480).

Almost surely, 2^9042126809 is an apocalyptic number.

It is an amenable number.

9042126809 is a deficient number, since it is larger than the sum of its proper divisors (480765031).

9042126809 is a wasteful number, since it uses less digits than its factorization.

9042126809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243199.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 9042126809 is about 95090.0983751726. The cubic root of 9042126809 is about 2083.3242277803.

The spelling of 9042126809 in words is "nine billion, forty-two million, one hundred twenty-six thousand, eight hundred nine".