8981473818 has 32 divisors (see below), whose sum is σ = 18242784000. Its totient is φ = 2947404096.

The previous prime is 8981473763. The next prime is 8981473841. The reversal of 8981473818 is 8183741898.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138280 + ... + 192572.

It is an arithmetic number, because the mean of its divisors is an integer number (570087000).

Almost surely, 2^8981473818 is an apocalyptic number.

8981473818 is an abundant number, since it is smaller than the sum of its proper divisors (9261310182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8981473818 is a wasteful number, since it uses less digits than its factorization.

8981473818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54726.

The product of its digits is 3096576, while the sum is 57.

The square root of 8981473818 is about 94770.6379529018. The cubic root of 8981473818 is about 2078.6555829247.

The spelling of 8981473818 in words is "eight billion, nine hundred eighty-one million, four hundred seventy-three thousand, eight hundred eighteen".