849648206809 has 8 divisors (see below), whose sum is σ = 886973127552. Its totient is φ = 812355260640.

The previous prime is 849648206767. The next prime is 849648206831. The reversal of 849648206809 is 908602846948.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 849648206809 - 2⁷ = 849648206681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (849648207809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7939324 + ... + 8045629.

It is an arithmetic number, because the mean of its divisors is an integer number (110871640944).

Almost surely, 2^849648206809 is an apocalyptic number.

It is an amenable number.

849648206809 is a deficient number, since it is larger than the sum of its proper divisors (37324920743).

849648206809 is a wasteful number, since it uses less digits than its factorization.

849648206809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15987287.

The product of its (nonzero) digits is 47775744, while the sum is 64.

The spelling of 849648206809 in words is "eight hundred forty-nine billion, six hundred forty-eight million, two hundred six thousand, eight hundred nine".