2871686834 has 8 divisors (see below), whose sum is σ = 4336440300. Its totient is φ = 1426206736.

The previous prime is 2871686819. The next prime is 2871686837. The reversal of 2871686834 is 4386861782.

It can be written as a sum of positive squares in 2 ways, for example, as 2621952025 + 249734809 = 51205^2 + 15803^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2871686837) 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 3 ways as a sum of consecutive naturals, for example, 4817969 + ... + 4818564.

Almost surely, 2^2871686834 is an apocalyptic number.

2871686834 is a deficient number, since it is larger than the sum of its proper divisors (1464753466).

2871686834 is a wasteful number, since it uses less digits than its factorization.

2871686834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9636684.

The product of its digits is 3096576, while the sum is 53.

The square root of 2871686834 is about 53588.1221354136. The cubic root of 2871686834 is about 1421.3870652820.

The spelling of 2871686834 in words is "two billion, eight hundred seventy-one million, six hundred eighty-six thousand, eight hundred thirty-four".