8981374187 has 16 divisors (see below), whose sum is σ = 9353377152. Its totient is φ = 8617097280.

The previous prime is 8981374183. The next prime is 8981374201. The reversal of 8981374187 is 7814731898.

8981374187 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 8981374187 - 2² = 8981374183 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8981374183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1873808 + ... + 1878594.

It is an arithmetic number, because the mean of its divisors is an integer number (584586072).

Almost surely, 2^8981374187 is an apocalyptic number.

8981374187 is a deficient number, since it is larger than the sum of its proper divisors (372002965).

8981374187 is a wasteful number, since it uses less digits than its factorization.

8981374187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5578.

The product of its digits is 2709504, while the sum is 56.

The square root of 8981374187 is about 94770.1123086809. The cubic root of 8981374187 is about 2078.6478967586.

The spelling of 8981374187 in words is "eight billion, nine hundred eighty-one million, three hundred seventy-four thousand, one hundred eighty-seven".