2093680818 has 16 divisors (see below), whose sum is σ = 4652624160. Its totient is φ = 697893588.

The previous prime is 2093680817. The next prime is 2093680859. The reversal of 2093680818 is 8180863902.

2093680818 is a `hidden beast` number, since 209 + 368 + 0 + 81 + 8 = 666.

It is a super-2 number, since 2×2093680818² = 8766998735322298248, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2093680811) 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, 19385880 + ... + 19385987.

It is an arithmetic number, because the mean of its divisors is an integer number (290789010).

Almost surely, 2^2093680818 is an apocalyptic number.

2093680818 is an abundant number, since it is smaller than the sum of its proper divisors (2558943342).

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

2093680818 is a wasteful number, since it uses less digits than its factorization.

2093680818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38771878 (or 38771872 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 2093680818 is about 45756.7570747753. The cubic root of 2093680818 is about 1279.2933962165.

The spelling of 2093680818 in words is "two billion, ninety-three million, six hundred eighty thousand, eight hundred eighteen".