63418018 has 16 divisors (see below), whose sum is σ = 97214040. Its totient is φ = 31021056.

The previous prime is 63418013. The next prime is 63418031. The reversal of 63418018 is 81081436.

It can be written as a sum of positive squares in 4 ways, for example, as 27741289 + 35676729 = 5267^2 + 5973^2 .

It is not an unprimeable number, because it can be changed into a prime (63418013) 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, 15430 + ... + 19102.

Almost surely, 2^63418018 is an apocalyptic number.

63418018 is a deficient number, since it is larger than the sum of its proper divisors (33796022).

63418018 is a wasteful number, since it uses less digits than its factorization.

63418018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3861.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 63418018 is about 7963.5430557008. The cubic root of 63418018 is about 398.7838436567.

The spelling of 63418018 in words is "sixty-three million, four hundred eighteen thousand, eighteen".