8981871881 has 8 divisors (see below), whose sum is σ = 9475668000. Its totient is φ = 8490182400.

The previous prime is 8981871823. The next prime is 8981871889. The reversal of 8981871881 is 1881781898.

8981871881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8981871881 - 2¹⁸ = 8981609737 is a prime.

It is a super-2 number, since 2×8981871881² (a number of 21 digits) contains 22 as substring.

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 8981871881.

It is not an unprimeable number, because it can be changed into a prime (8981871889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517895 + ... + 534956.

It is an arithmetic number, because the mean of its divisors is an integer number (1184458500).

Almost surely, 2^8981871881 is an apocalyptic number.

It is an amenable number.

8981871881 is a deficient number, since it is larger than the sum of its proper divisors (493796119).

8981871881 is a wasteful number, since it uses less digits than its factorization.

8981871881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053319.

The product of its digits is 2064384, while the sum is 59.

The square root of 8981871881 is about 94772.7380684973. The cubic root of 8981871881 is about 2078.6862914577.

The spelling of 8981871881 in words is "eight billion, nine hundred eighty-one million, eight hundred seventy-one thousand, eight hundred eighty-one".