6850505817 has 12 divisors (see below), whose sum is σ = 10325400384. Its totient is φ = 4368438360.

The previous prime is 6850505797. The next prime is 6850505819. The reversal of 6850505817 is 7185050586.

6850505817 is a `hidden beast` number, since 68 + 5 + 0 + 5 + 0 + 581 + 7 = 666.

It is not a de Polignac number, because 6850505817 - 2¹⁶ = 6850440281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6850505819) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16546909 + ... + 16547322.

It is an arithmetic number, because the mean of its divisors is an integer number (860450032).

Almost surely, 2^6850505817 is an apocalyptic number.

It is an amenable number.

6850505817 is a deficient number, since it is larger than the sum of its proper divisors (3474894567).

6850505817 is a wasteful number, since it uses less digits than its factorization.

6850505817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33094260 (or 33094257 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 45.

The square root of 6850505817 is about 82767.7824820745. The cubic root of 6850505817 is about 1899.2153562500.

The spelling of 6850505817 in words is "six billion, eight hundred fifty million, five hundred five thousand, eight hundred seventeen".