2116843900 has 18 divisors (see below), whose sum is σ = 4593551480. Its totient is φ = 846737520.

The previous prime is 2116843873. The next prime is 2116843921. The reversal of 2116843900 is 93486112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10584120 + ... + 10584319.

Almost surely, 2^2116843900 is an apocalyptic number.

2116843900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2116843900 is an abundant number, since it is smaller than the sum of its proper divisors (2476707580).

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

2116843900 is a wasteful number, since it uses less digits than its factorization.

2116843900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21168453 (or 21168446 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 2116843900 is about 46009.1719116960. The cubic root of 2116843900 is about 1283.9938527411.

The spelling of 2116843900 in words is "two billion, one hundred sixteen million, eight hundred forty-three thousand, nine hundred".