8509116878 has 8 divisors (see below), whose sum is σ = 12770104872. Its totient is φ = 4252415256.

The previous prime is 8509116853. The next prime is 8509116881. The reversal of 8509116878 is 8786119058.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1066625 + ... + 1074572.

It is an arithmetic number, because the mean of its divisors is an integer number (1596263109).

Almost surely, 2^8509116878 is an apocalyptic number.

8509116878 is a deficient number, since it is larger than the sum of its proper divisors (4260987994).

8509116878 is a wasteful number, since it uses less digits than its factorization.

8509116878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143186.

The product of its (nonzero) digits is 967680, while the sum is 53.

The square root of 8509116878 is about 92244.8745351198. The cubic root of 8509116878 is about 2041.5569363574.

The spelling of 8509116878 in words is "eight billion, five hundred nine million, one hundred sixteen thousand, eight hundred seventy-eight".