2118841000 has 32 divisors (see below), whose sum is σ = 4958090280. Its totient is φ = 847536000.

The previous prime is 2118840991. The next prime is 2118841013. The reversal of 2118841000 is 1488112.

It can be written as a sum of positive squares in 4 ways, for example, as 320911396 + 1797929604 = 17914^2 + 42402^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

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 7 ways as a sum of consecutive naturals, for example, 1058421 + ... + 1060420.

Almost surely, 2^2118841000 is an apocalyptic number.

2118841000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2118841000 is an abundant number, since it is smaller than the sum of its proper divisors (2839249280).

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

2118841000 is a wasteful number, since it uses less digits than its factorization.

2118841000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2118862 (or 2118848 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 2118841000 is about 46030.8700765041. The cubic root of 2118841000 is about 1284.3975131373.

The spelling of 2118841000 in words is "two billion, one hundred eighteen million, eight hundred forty-one thousand".