8641387875 has 32 divisors (see below), whose sum is σ = 14388648768. Its totient is φ = 4605734400.

The previous prime is 8641387849. The next prime is 8641387889. The reversal of 8641387875 is 5787831468.

It is not a de Polignac number, because 8641387875 - 2⁷ = 8641387747 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 643227 + ... + 656523.

It is an arithmetic number, because the mean of its divisors is an integer number (449645274).

Almost surely, 2^8641387875 is an apocalyptic number.

8641387875 is a deficient number, since it is larger than the sum of its proper divisors (5747260893).

8641387875 is a wasteful number, since it uses less digits than its factorization.

8641387875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15048 (or 15038 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 57.

The square root of 8641387875 is about 92959.0655880318. The cubic root of 8641387875 is about 2052.0810020215.

The spelling of 8641387875 in words is "eight billion, six hundred forty-one million, three hundred eighty-seven thousand, eight hundred seventy-five".