854085529917 has 12 divisors (see below), whose sum is σ = 1233736449660. Its totient is φ = 569363883648.

The previous prime is 854085529909. The next prime is 854085529919. The reversal of 854085529917 is 719925580458.

854085529917 is a `hidden beast` number, since 8 + 540 + 8 + 55 + 29 + 9 + 17 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 435572280441 + 418513249476 = 659979^2 + 646926^2 .

It is not a de Polignac number, because 854085529917 - 2³ = 854085529909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (854085529919) 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, 2000442 + ... + 2389547.

It is an arithmetic number, because the mean of its divisors is an integer number (102811370805).

Almost surely, 2^854085529917 is an apocalyptic number.

It is an amenable number.

854085529917 is a deficient number, since it is larger than the sum of its proper divisors (379650919743).

854085529917 is a wasteful number, since it uses less digits than its factorization.

854085529917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4411612 (or 4411609 counting only the distinct ones).

The product of its (nonzero) digits is 36288000, while the sum is 63.

The spelling of 854085529917 in words is "eight hundred fifty-four billion, eighty-five million, five hundred twenty-nine thousand, nine hundred seventeen".