84448000009 has 4 divisors (see below), whose sum is σ = 84826690816.
Its totient is φ = 84069309204.
The previous prime is 84447999931. The next prime is 84448000027. The reversal of 84448000009 is 90000084448.
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 a de Polignac number, because none of the positive numbers 2k-84448000009 is a prime.
It is a magnanimous number.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (84448000309) 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, 189345069 + ... + 189345514.
It is an arithmetic number, because the mean of its divisors is an integer number (21206672704).
Almost surely, 284448000009 is an apocalyptic number.
It is an amenable number.
84448000009 is a deficient number, since it is larger than the sum of its proper divisors (378690807).
84448000009 is a wasteful number, since it uses less digits than its factorization.
84448000009 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 378690806.
The product of its (nonzero) digits is 36864, while the sum is 37.
The spelling of 84448000009 in words is "eighty-four billion, four hundred forty-eight million, nine", and thus it is an aban number.