8718612228 has 30 divisors (see below), whose sum is σ = 22792175406. Its totient is φ = 2906203968.

The previous prime is 8718612223. The next prime is 8718612241. The reversal of 8718612228 is 8222168178.

It is a happy number.

8718612228 is a `hidden beast` number, since 8 + 7 + 1 + 8 + 612 + 2 + 28 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7687431684 + 1031180544 = 87678^2 + 32112^2 .

It is a super-2 number, since 2×8718612228² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8718612223) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 13454325 + ... + 13454972.

Almost surely, 2^8718612228 is an apocalyptic number.

It is an amenable number.

8718612228 is an abundant number, since it is smaller than the sum of its proper divisors (14073563178).

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

8718612228 is a wasteful number, since it uses less digits than its factorization.

8718612228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26909313 (or 26909302 counting only the distinct ones).

The product of its digits is 172032, while the sum is 45.

The square root of 8718612228 is about 93373.5092411118. The cubic root of 8718612228 is about 2058.1757365932.

The spelling of 8718612228 in words is "eight billion, seven hundred eighteen million, six hundred twelve thousand, two hundred twenty-eight".