2108678018 has 4 divisors (see below), whose sum is σ = 3163017030. Its totient is φ = 1054339008.

The previous prime is 2108677999. The next prime is 2108678051. The reversal of 2108678018 is 8108768012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1765428289 + 343249729 = 42017^2 + 18527^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527169503 + ... + 527169506.

Almost surely, 2^2108678018 is an apocalyptic number.

2108678018 is a deficient number, since it is larger than the sum of its proper divisors (1054339012).

2108678018 is a wasteful number, since it uses less digits than its factorization.

2108678018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054339011.

The product of its (nonzero) digits is 43008, while the sum is 41.

The square root of 2108678018 is about 45920.3442713575. The cubic root of 2108678018 is about 1282.3406914153.

The spelling of 2108678018 in words is "two billion, one hundred eight million, six hundred seventy-eight thousand, eighteen".