2871652861 has 16 divisors (see below), whose sum is σ = 3584972160. Its totient is φ = 2234695680.

The previous prime is 2871652793. The next prime is 2871652867. The reversal of 2871652861 is 1682561782.

It is not a de Polignac number, because 2871652861 - 2¹⁹ = 2871128573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2871652867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34965 + ... + 83461.

It is an arithmetic number, because the mean of its divisors is an integer number (224060760).

Almost surely, 2^2871652861 is an apocalyptic number.

It is an amenable number.

2871652861 is a deficient number, since it is larger than the sum of its proper divisors (713319299).

2871652861 is a wasteful number, since it uses less digits than its factorization.

2871652861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49284.

The product of its digits is 322560, while the sum is 46.

The square root of 2871652861 is about 53587.8051519187. The cubic root of 2871652861 is about 1421.3814601010.

The spelling of 2871652861 in words is "two billion, eight hundred seventy-one million, six hundred fifty-two thousand, eight hundred sixty-one".