2105079818 has 8 divisors (see below), whose sum is σ = 3159245700. Its totient is φ = 1051997920.

The previous prime is 2105079773. The next prime is 2105079829. The reversal of 2105079818 is 8189705012.

It can be written as a sum of positive squares in 2 ways, for example, as 2104699129 + 380689 = 45877^2 + 617^2 .

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

It is a super-2 number, since 2×2105079818² = 8862722080301826248, which contains 22 as substring.

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, 266123 + ... + 273918.

Almost surely, 2^2105079818 is an apocalyptic number.

2105079818 is a deficient number, since it is larger than the sum of its proper divisors (1054165882).

2105079818 is a wasteful number, since it uses less digits than its factorization.

2105079818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541992.

The product of its (nonzero) digits is 40320, while the sum is 41.

The square root of 2105079818 is about 45881.1488304293. The cubic root of 2105079818 is about 1281.6108905317.

The spelling of 2105079818 in words is "two billion, one hundred five million, seventy-nine thousand, eight hundred eighteen".