3361856818 has 4 divisors (see below), whose sum is σ = 5042785230. Its totient is φ = 1680928408.

The previous prime is 3361856803. The next prime is 3361856909. The reversal of 3361856818 is 8186581633.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8186581633 = 389 ⋅21045197.

It can be written as a sum of positive squares in only one way, i.e., 3281342089 + 80514729 = 57283^2 + 8973^2 .

It is a super-2 number, since 2×3361856818² = 22604162529466170248, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 840464203 + ... + 840464206.

Almost surely, 2^3361856818 is an apocalyptic number.

3361856818 is a deficient number, since it is larger than the sum of its proper divisors (1680928412).

3361856818 is a wasteful number, since it uses less digits than its factorization.

3361856818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680928411.

The product of its digits is 829440, while the sum is 49.

The square root of 3361856818 is about 57981.5213494782. The cubic root of 3361856818 is about 1498.0503288789.

The spelling of 3361856818 in words is "three billion, three hundred sixty-one million, eight hundred fifty-six thousand, eight hundred eighteen".