4452666818 has 8 divisors (see below), whose sum is σ = 6788492220. Its totient is φ = 2189836080.

The previous prime is 4452666817. The next prime is 4452666821. The reversal of 4452666818 is 8186662544.

It can be written as a sum of positive squares in 2 ways, for example, as 4303753609 + 148913209 = 65603^2 + 12203^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (4452666817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18248513 + ... + 18248756.

Almost surely, 2^4452666818 is an apocalyptic number.

4452666818 is a deficient number, since it is larger than the sum of its proper divisors (2335825402).

4452666818 is a wasteful number, since it uses less digits than its factorization.

4452666818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36497332.

The product of its digits is 2211840, while the sum is 50.

The square root of 4452666818 is about 66728.3059728029. The cubic root of 4452666818 is about 1645.1546641225.

The spelling of 4452666818 in words is "four billion, four hundred fifty-two million, six hundred sixty-six thousand, eight hundred eighteen".