2118993800 has 96 divisors (see below), whose sum is σ = 6142374720. Its totient is φ = 660460800.

The previous prime is 2118993797. The next prime is 2118993827. The reversal of 2118993800 is 83998112.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53399 + ... + 84198.

It is an arithmetic number, because the mean of its divisors is an integer number (63983070).

Almost surely, 2^2118993800 is an apocalyptic number.

2118993800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2118993800 is an abundant number, since it is smaller than the sum of its proper divisors (4023380920).

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

2118993800 is a wasteful number, since it uses less digits than its factorization.

2118993800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137631 (or 137622 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 2118993800 is about 46032.5298023039. The cubic root of 2118993800 is about 1284.4283871266.

The spelling of 2118993800 in words is "two billion, one hundred eighteen million, nine hundred ninety-three thousand, eight hundred".