8687642285 has 16 divisors (see below), whose sum is σ = 11928892800. Its totient is φ = 5950034496.

The previous prime is 8687642269. The next prime is 8687642309. The reversal of 8687642285 is 5822467868.

It is a happy number.

8687642285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8687642285 - 2⁴ = 8687642269 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8687642285.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120695 + ... + 178724.

It is an arithmetic number, because the mean of its divisors is an integer number (745555800).

Almost surely, 2^8687642285 is an apocalyptic number.

It is an amenable number.

8687642285 is a deficient number, since it is larger than the sum of its proper divisors (3241250515).

8687642285 is a wasteful number, since it uses less digits than its factorization.

8687642285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300260.

The product of its digits is 10321920, while the sum is 56.

The square root of 8687642285 is about 93207.5226845988. The cubic root of 8687642285 is about 2055.7358525688.

The spelling of 8687642285 in words is "eight billion, six hundred eighty-seven million, six hundred forty-two thousand, two hundred eighty-five".