8651218871 has 8 divisors (see below), whose sum is σ = 9173020080. Its totient is φ = 8136065088.

The previous prime is 8651218847. The next prime is 8651218931. The reversal of 8651218871 is 1788121568.

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

It is not a de Polignac number, because 8651218871 - 2¹⁰ = 8651217847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8651218801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1659176 + ... + 1664381.

It is an arithmetic number, because the mean of its divisors is an integer number (1146627510).

Almost surely, 2^8651218871 is an apocalyptic number.

8651218871 is a deficient number, since it is larger than the sum of its proper divisors (521801209).

8651218871 is a wasteful number, since it uses less digits than its factorization.

8651218871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3323713.

The product of its digits is 215040, while the sum is 47.

The square root of 8651218871 is about 93011.9286489642. The cubic root of 8651218871 is about 2052.8589000025.

The spelling of 8651218871 in words is "eight billion, six hundred fifty-one million, two hundred eighteen thousand, eight hundred seventy-one".