2118563018 has 32 divisors (see below), whose sum is σ = 3953033280. Its totient is φ = 836616960.

The previous prime is 2118563009. The next prime is 2118563053. The reversal of 2118563018 is 8103658112.

It is a super-2 number, since 2×2118563018² = 8976618522474536648, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213008 + ... + 222731.

It is an arithmetic number, because the mean of its divisors is an integer number (123532290).

Almost surely, 2^2118563018 is an apocalyptic number.

2118563018 is a deficient number, since it is larger than the sum of its proper divisors (1834470262).

2118563018 is a wasteful number, since it uses less digits than its factorization.

2118563018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435782.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 2118563018 is about 46027.8504603463. The cubic root of 2118563018 is about 1284.3413417045.

The spelling of 2118563018 in words is "two billion, one hundred eighteen million, five hundred sixty-three thousand, eighteen".