2871216618 has 8 divisors (see below), whose sum is σ = 5742433248. Its totient is φ = 957072204.

The previous prime is 2871216599. The next prime is 2871216619. The reversal of 2871216618 is 8166121782.

2871216618 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

2871216618 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 2871216618.

It is not an unprimeable number, because it can be changed into a prime (2871216619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239268046 + ... + 239268057.

It is an arithmetic number, because the mean of its divisors is an integer number (717804156).

Almost surely, 2^2871216618 is an apocalyptic number.

2871216618 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2871216618 is a wasteful number, since it uses less digits than its factorization.

2871216618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478536108.

The product of its digits is 64512, while the sum is 42.

The square root of 2871216618 is about 53583.7346402805. The cubic root of 2871216618 is about 1421.3094807516.

The spelling of 2871216618 in words is "two billion, eight hundred seventy-one million, two hundred sixteen thousand, six hundred eighteen".