9812873287 has 16 divisors (see below), whose sum is σ = 11370159360. Its totient is φ = 8294812992.

The previous prime is 9812873281. The next prime is 9812873321. The reversal of 9812873287 is 7823782189.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9812873287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9812873281) 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, 315748 + ... + 345430.

It is an arithmetic number, because the mean of its divisors is an integer number (710634960).

Almost surely, 2^9812873287 is an apocalyptic number.

9812873287 is a deficient number, since it is larger than the sum of its proper divisors (1557286073).

9812873287 is a wasteful number, since it uses less digits than its factorization.

9812873287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30342.

The product of its digits is 2709504, while the sum is 55.

The square root of 9812873287 is about 99059.9479456758. The cubic root of 9812873287 is about 2140.9115753499.

The spelling of 9812873287 in words is "nine billion, eight hundred twelve million, eight hundred seventy-three thousand, two hundred eighty-seven".