9049815809 has 4 divisors (see below), whose sum is σ = 9064725504. Its totient is φ = 9034906116.

The previous prime is 9049815631. The next prime is 9049815811. The reversal of 9049815809 is 9085189409.

9049815809 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9049815809 - 2¹² = 9049811713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9049815839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7453937 + ... + 7455150.

It is an arithmetic number, because the mean of its divisors is an integer number (2266181376).

Almost surely, 2^9049815809 is an apocalyptic number.

It is an amenable number.

9049815809 is a deficient number, since it is larger than the sum of its proper divisors (14909695).

9049815809 is a wasteful number, since it uses less digits than its factorization.

9049815809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14909694.

The product of its (nonzero) digits is 933120, while the sum is 53.

The square root of 9049815809 is about 95130.5198608733. The cubic root of 9049815809 is about 2083.9145808376.

The spelling of 9049815809 in words is "nine billion, forty-nine million, eight hundred fifteen thousand, eight hundred nine".