9867854873 has 16 divisors (see below), whose sum is σ = 10278752256. Its totient is φ = 9465718080.

The previous prime is 9867854849. The next prime is 9867854891. The reversal of 9867854873 is 3784587689.

It is a cyclic number.

It is not a de Polignac number, because 9867854873 - 2⁶ = 9867854809 is a prime.

It is a super-2 number, since 2×9867854873² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9867854803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3662915 + ... + 3665607.

It is an arithmetic number, because the mean of its divisors is an integer number (642422016).

Almost surely, 2^9867854873 is an apocalyptic number.

It is an amenable number.

9867854873 is a deficient number, since it is larger than the sum of its proper divisors (410897383).

9867854873 is a wasteful number, since it uses less digits than its factorization.

9867854873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4264.

The product of its digits is 81285120, while the sum is 65.

The square root of 9867854873 is about 99337.0770306838. The cubic root of 9867854873 is about 2144.9026439405.

The spelling of 9867854873 in words is "nine billion, eight hundred sixty-seven million, eight hundred fifty-four thousand, eight hundred seventy-three".