849446095717 has 4 divisors (see below), whose sum is σ = 849476788236. Its totient is φ = 849415403200.

The previous prime is 849446095709. The next prime is 849446095721. The reversal of 849446095717 is 717590644948.

It is a Cunningham number, because it is equal to 921654²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 354732212836 + 494713882881 = 595594^2 + 703359^2 .

It is a cyclic number.

It is not a de Polignac number, because 849446095717 - 2³ = 849446095709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849446095787) 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 3 ways as a sum of consecutive naturals, for example, 15304708 + ... + 15360109.

It is an arithmetic number, because the mean of its divisors is an integer number (212369197059).

Almost surely, 2^849446095717 is an apocalyptic number.

It is an amenable number.

849446095717 is a deficient number, since it is larger than the sum of its proper divisors (30692519).

849446095717 is a wasteful number, since it uses less digits than its factorization.

849446095717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30692518.

The product of its (nonzero) digits is 60963840, while the sum is 64.

The spelling of 849446095717 in words is "eight hundred forty-nine billion, four hundred forty-six million, ninety-five thousand, seven hundred seventeen".