9009009009042 has 16 divisors (see below), whose sum is σ = 20592020592192. Its totient is φ = 2574002574000.

The previous prime is 9009009009041. The next prime is 9009009009083. The reversal of 9009009009042 is 2409009009009.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 214500214501 = 9009009009042 / (9 + 0 + 0 + 9 + 0 + 0 + 9 + 0 + 0 + 9 + 0 + 4 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 9009009008985 and 9009009009003.

It is not an unprimeable number, because it can be changed into a prime (9009009009041) 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, 107250107209 + ... + 107250107292.

It is an arithmetic number, because the mean of its divisors is an integer number (1287001287012).

Almost surely, 2^{9009009009042} is an apocalyptic number.

9009009009042 is an abundant number, since it is smaller than the sum of its proper divisors (11583011583150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9009009009042 is a wasteful number, since it uses less digits than its factorization.

9009009009042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214500214513.

The product of its (nonzero) digits is 52488, while the sum is 42.

The spelling of 9009009009042 in words is "nine trillion, nine billion, nine million, nine thousand, forty-two".