8687863872 has 224 divisors, whose sum is σ = 27355190400. Its totient is φ = 2694168576.

The previous prime is 8687863861. The next prime is 8687863909. The reversal of 8687863872 is 2783687868.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2612803 + ... + 2616125.

Almost surely, 2^8687863872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8687863872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13677595200).

8687863872 is an abundant number, since it is smaller than the sum of its proper divisors (18667326528).

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

8687863872 is a wasteful number, since it uses less digits than its factorization.

8687863872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3450 (or 3434 counting only the distinct ones).

The product of its digits is 43352064, while the sum is 63.

The square root of 8687863872 is about 93208.7113525340. The cubic root of 8687863872 is about 2055.7533302861.

The spelling of 8687863872 in words is "eight billion, six hundred eighty-seven million, eight hundred sixty-three thousand, eight hundred seventy-two".