6849866609 has 8 divisors (see below), whose sum is σ = 7071816192. Its totient is φ = 6627978720.

The previous prime is 6849866537. The next prime is 6849866623. The reversal of 6849866609 is 9066689486.

6849866609 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6849866609 is a prime.

It is a super-2 number, since 2×6849866609² = 93841345122186317762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6849866659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342212 + ... + 361674.

It is an arithmetic number, because the mean of its divisors is an integer number (883977024).

Almost surely, 2^6849866609 is an apocalyptic number.

It is an amenable number.

6849866609 is a deficient number, since it is larger than the sum of its proper divisors (221949583).

6849866609 is a wasteful number, since it uses less digits than its factorization.

6849866609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30847.

The product of its (nonzero) digits is 26873856, while the sum is 62.

The square root of 6849866609 is about 82763.9209378096. The cubic root of 6849866609 is about 1899.1562836578.

The spelling of 6849866609 in words is "six billion, eight hundred forty-nine million, eight hundred sixty-six thousand, six hundred nine".