8684561115 has 12 divisors (see below), whose sum is σ = 15053239344. Its totient is φ = 4631765904.

The previous prime is 8684561077. The next prime is 8684561131. The reversal of 8684561115 is 5111654868.

8684561115 is a `hidden beast` number, since 8 + 6 + 84 + 561 + 1 + 1 + 5 = 666.

8684561115 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8684561115 - 2¹¹ = 8684559067 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 192990247 = 8684561115 / (8 + 6 + 8 + 4 + 5 + 6 + 1 + 1 + 1 + 5).

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 11 ways as a sum of consecutive naturals, for example, 96495079 + ... + 96495168.

It is an arithmetic number, because the mean of its divisors is an integer number (1254436612).

Almost surely, 2^8684561115 is an apocalyptic number.

8684561115 is a deficient number, since it is larger than the sum of its proper divisors (6368678229).

8684561115 is a wasteful number, since it uses less digits than its factorization.

8684561115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192990258 (or 192990255 counting only the distinct ones).

The product of its digits is 230400, while the sum is 45.

The square root of 8684561115 is about 93190.9926709658. The cubic root of 8684561115 is about 2055.4927938887.

The spelling of 8684561115 in words is "eight billion, six hundred eighty-four million, five hundred sixty-one thousand, one hundred fifteen".