90000084449 has 16 divisors (see below), whose sum is σ = 98655701760. Its totient is φ = 81423874560.

The previous prime is 90000084443. The next prime is 90000084467. The reversal of 90000084449 is 94448000009.

It is a cyclic number.

It is not a de Polignac number, because 90000084449 - 2²⁰ = 89999035873 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90000084443) 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 15 ways as a sum of consecutive naturals, for example, 4451327 + ... + 4471499.

It is an arithmetic number, because the mean of its divisors is an integer number (6165981360).

Almost surely, 2^90000084449 is an apocalyptic number.

It is an amenable number.

90000084449 is a deficient number, since it is larger than the sum of its proper divisors (8655617311).

90000084449 is a wasteful number, since it uses less digits than its factorization.

90000084449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22120.

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 90000084449 in words is "ninety billion, eighty-four thousand, four hundred forty-nine".