8918786918 has 4 divisors (see below), whose sum is σ = 13378180380. Its totient is φ = 4459393458.

The previous prime is 8918786917. The next prime is 8918786927. The reversal of 8918786918 is 8196878198.

8918786918 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8918786917) 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 as a sum of consecutive naturals, namely, 2229696728 + ... + 2229696731.

It is an arithmetic number, because the mean of its divisors is an integer number (3344545095).

Almost surely, 2^8918786918 is an apocalyptic number.

8918786918 is a deficient number, since it is larger than the sum of its proper divisors (4459393462).

8918786918 is a wasteful number, since it uses less digits than its factorization.

8918786918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4459393461.

The product of its digits is 13934592, while the sum is 65.

The square root of 8918786918 is about 94439.3292966442. The cubic root of 8918786918 is about 2073.8082414204.

The spelling of 8918786918 in words is "eight billion, nine hundred eighteen million, seven hundred eighty-six thousand, nine hundred eighteen".