8678641284 has 36 divisors (see below), whose sum is σ = 21944708604. Its totient is φ = 2891953152.

The previous prime is 8678641273. The next prime is 8678641303. The reversal of 8678641284 is 4821468768.

8678641284 is a `hidden beast` number, since 86 + 78 + 6 + 412 + 84 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8005238784 + 673402500 = 89472^2 + 25950^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 8678641284.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80244 + ... + 154260.

It is an arithmetic number, because the mean of its divisors is an integer number (609575239).

Almost surely, 2^8678641284 is an apocalyptic number.

It is an amenable number.

8678641284 is an abundant number, since it is smaller than the sum of its proper divisors (13266067320).

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

8678641284 is a wasteful number, since it uses less digits than its factorization.

8678641284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77284 (or 77279 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 54.

The square root of 8678641284 is about 93159.2254368831. The cubic root of 8678641284 is about 2055.0256455144.

The spelling of 8678641284 in words is "eight billion, six hundred seventy-eight million, six hundred forty-one thousand, two hundred eighty-four".