2871517212 has 18 divisors (see below), whose sum is σ = 7258557488. Its totient is φ = 957172392.

The previous prime is 2871517211. The next prime is 2871517213. The reversal of 2871517212 is 2127151782.

It is an interprime number because it is at equal distance from previous prime (2871517211) and next prime (2871517213).

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×2871517212² = 16491222197624505888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 79764367 = 2871517212 / (2 + 8 + 7 + 1 + 5 + 1 + 7 + 2 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2871517211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39882148 + ... + 39882219.

Almost surely, 2^2871517212 is an apocalyptic number.

It is an amenable number.

2871517212 is an abundant number, since it is smaller than the sum of its proper divisors (4387040276).

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

2871517212 is a wasteful number, since it uses less digits than its factorization.

2871517212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79764377 (or 79764372 counting only the distinct ones).

The product of its digits is 15680, while the sum is 36.

The square root of 2871517212 is about 53586.5394665489. The cubic root of 2871517212 is about 1421.3590790289.

Adding to 2871517212 its reverse (2127151782), we get a palindrome (4998668994).

The spelling of 2871517212 in words is "two billion, eight hundred seventy-one million, five hundred seventeen thousand, two hundred twelve".