9862811885 has 16 divisors (see below), whose sum is σ = 12614579712. Its totient is φ = 7376928000.

The previous prime is 9862811857. The next prime is 9862811921. The reversal of 9862811885 is 5881182689.

It is a happy number.

9862811885 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-9862811885 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9862811885.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 371381 + ... + 397050.

It is an arithmetic number, because the mean of its divisors is an integer number (788411232).

Almost surely, 2^9862811885 is an apocalyptic number.

It is an amenable number.

9862811885 is a deficient number, since it is larger than the sum of its proper divisors (2751767827).

9862811885 is a wasteful number, since it uses less digits than its factorization.

9862811885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768604.

The product of its digits is 2211840, while the sum is 56.

The square root of 9862811885 is about 99311.6905756820. The cubic root of 9862811885 is about 2144.5371960090.

The spelling of 9862811885 in words is "nine billion, eight hundred sixty-two million, eight hundred eleven thousand, eight hundred eighty-five".