4451416218 has 12 divisors (see below), whose sum is σ = 9644735178. Its totient is φ = 1483805400.

The previous prime is 4451416183. The next prime is 4451416223. The reversal of 4451416218 is 8126141544.

4451416218 is a `hidden beast` number, since 445 + 141 + 62 + 18 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2958598449 + 1492817769 = 54393^2 + 38637^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123650433 + ... + 123650468.

Almost surely, 2^4451416218 is an apocalyptic number.

4451416218 is an abundant number, since it is smaller than the sum of its proper divisors (5193318960).

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

4451416218 is a wasteful number, since it uses less digits than its factorization.

4451416218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247300909 (or 247300906 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 4451416218 is about 66718.9344789019. The cubic root of 4451416218 is about 1645.0006273652. Note that the first 3 decimals are identical.

The spelling of 4451416218 in words is "four billion, four hundred fifty-one million, four hundred sixteen thousand, two hundred eighteen".