8520707871 has 96 divisors (see below), whose sum is σ = 14671507200. Its totient is φ = 4844992320.

The previous prime is 8520707851. The next prime is 8520707893. The reversal of 8520707871 is 1787070258.

It is not a de Polignac number, because 8520707871 - 2¹⁰ = 8520706847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8520707821) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12330636 + ... + 12331326.

It is an arithmetic number, because the mean of its divisors is an integer number (152828200).

Almost surely, 2^8520707871 is an apocalyptic number.

8520707871 is a deficient number, since it is larger than the sum of its proper divisors (6150799329).

8520707871 is a wasteful number, since it uses less digits than its factorization.

8520707871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818 (or 769 counting only the distinct ones).

The product of its (nonzero) digits is 219520, while the sum is 45.

The square root of 8520707871 is about 92307.6804550954. The cubic root of 8520707871 is about 2042.4835086388.

The spelling of 8520707871 in words is "eight billion, five hundred twenty million, seven hundred seven thousand, eight hundred seventy-one".