8128998218 has 16 divisors (see below), whose sum is σ = 13307224320. Its totient is φ = 3693547200.

The previous prime is 8128998211. The next prime is 8128998221.

8128998218 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×8128998218² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8128998211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14303 + ... + 128306.

It is an arithmetic number, because the mean of its divisors is an integer number (831701520).

Almost surely, 2^8128998218 is an apocalyptic number.

8128998218 is a deficient number, since it is larger than the sum of its proper divisors (5178226102).

8128998218 is a wasteful number, since it uses less digits than its factorization.

8128998218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145213.

The product of its digits is 1327104, while the sum is 56.

The square root of 8128998218 is about 90160.9572819632. The cubic root of 8128998218 is about 2010.6925839494.

The spelling of 8128998218 in words is "eight billion, one hundred twenty-eight million, nine hundred ninety-eight thousand, two hundred eighteen".