2871327845 has 8 divisors (see below), whose sum is σ = 3564407160. Its totient is φ = 2217853120.

The previous prime is 2871327839. The next prime is 2871327847. The reversal of 2871327845 is 5487231782.

It can be written as a sum of positive squares in 4 ways, for example, as 489692641 + 2381635204 = 22129^2 + 48802^2 .

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

It is not a de Polignac number, because 2871327845 - 2¹⁴ = 2871311461 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2871327845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2871327847) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 9900986 + ... + 9901275.

It is an arithmetic number, because the mean of its divisors is an integer number (445550895).

Almost surely, 2^2871327845 is an apocalyptic number.

It is an amenable number.

2871327845 is a deficient number, since it is larger than the sum of its proper divisors (693079315).

2871327845 is a wasteful number, since it uses less digits than its factorization.

2871327845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19802295.

The product of its digits is 752640, while the sum is 47.

The square root of 2871327845 is about 53584.7725104810. The cubic root of 2871327845 is about 1421.3278337090.

The spelling of 2871327845 in words is "two billion, eight hundred seventy-one million, three hundred twenty-seven thousand, eight hundred forty-five".