2118806834 has 8 divisors (see below), whose sum is σ = 3183917868. Its totient is φ = 1057500880.

The previous prime is 2118806827. The next prime is 2118806843. The reversal of 2118806834 is 4386088112.

It can be written as a sum of positive squares in 2 ways, for example, as 1564439809 + 554367025 = 39553^2 + 23545^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2118806791 and 2118806800.

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 3 ways as a sum of consecutive naturals, for example, 949877 + ... + 952104.

Almost surely, 2^2118806834 is an apocalyptic number.

2118806834 is a deficient number, since it is larger than the sum of its proper divisors (1065111034).

2118806834 is a wasteful number, since it uses less digits than its factorization.

2118806834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902540.

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 2118806834 is about 46030.4989544975. The cubic root of 2118806834 is about 1284.3906095265.

The spelling of 2118806834 in words is "two billion, one hundred eighteen million, eight hundred six thousand, eight hundred thirty-four".