8509387875 has 16 divisors (see below), whose sum is σ = 14159622048. Its totient is φ = 4538340000.

The previous prime is 8509387853. The next prime is 8509387877. The reversal of 8509387875 is 5787839058.

It is not a de Polignac number, because 8509387875 - 2⁹ = 8509387363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8509387877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11345476 + ... + 11346225.

It is an arithmetic number, because the mean of its divisors is an integer number (884976378).

Almost surely, 2^8509387875 is an apocalyptic number.

8509387875 is a deficient number, since it is larger than the sum of its proper divisors (5650234173).

8509387875 is a wasteful number, since it uses less digits than its factorization.

8509387875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22691719 (or 22691709 counting only the distinct ones).

The product of its (nonzero) digits is 16934400, while the sum is 60.

The square root of 8509387875 is about 92246.3434234658. The cubic root of 8509387875 is about 2041.5786091874.

The spelling of 8509387875 in words is "eight billion, five hundred nine million, three hundred eighty-seven thousand, eight hundred seventy-five".