8644485049 has 4 divisors (see below), whose sum is σ = 8645412240. Its totient is φ = 8643557860.

The previous prime is 8644485037. The next prime is 8644485053. The reversal of 8644485049 is 9405844468.

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 2^k-8644485049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8644484987 and 8644485005.

It is not an unprimeable number, because it can be changed into a prime (8644485079) 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, 449467 + ... + 468304.

It is an arithmetic number, because the mean of its divisors is an integer number (2161353060).

Almost surely, 2^8644485049 is an apocalyptic number.

It is an amenable number.

8644485049 is a deficient number, since it is larger than the sum of its proper divisors (927191).

8644485049 is an equidigital number, since it uses as much as digits as its factorization.

8644485049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927190.

The product of its (nonzero) digits is 4423680, while the sum is 52.

The square root of 8644485049 is about 92975.7229011961. The cubic root of 8644485049 is about 2052.3261359767.

The spelling of 8644485049 in words is "eight billion, six hundred forty-four million, four hundred eighty-five thousand, forty-nine".