4418564018 has 18 divisors (see below), whose sum is σ = 7286858397. Its totient is φ = 2007968160.

The previous prime is 4418564011. The next prime is 4418564069. The reversal of 4418564018 is 8104658144.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4173547609 + 245016409 = 64603^2 + 15653^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=47003.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4418564011) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1031930 + ... + 1036202.

Almost surely, 2^4418564018 is an apocalyptic number.

4418564018 is a deficient number, since it is larger than the sum of its proper divisors (2868294379).

4418564018 is an frugal number, since it uses more digits than its factorization.

4418564018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8570 (or 4286 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 41.

The square root of 4418564018 is about 66472.2800722226. The cubic root of 4418564018 is about 1640.9438372845.

The spelling of 4418564018 in words is "four billion, four hundred eighteen million, five hundred sixty-four thousand, eighteen".