8509994147 has 8 divisors (see below), whose sum is σ = 9050280336. Its totient is φ = 7974118912.

The previous prime is 8509994137. The next prime is 8509994149. The reversal of 8509994147 is 7414999058.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8509994147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8509994092 and 8509994101.

It is not an unprimeable number, because it can be changed into a prime (8509994149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1098758 + ... + 1106475.

It is an arithmetic number, because the mean of its divisors is an integer number (1131285042).

Almost surely, 2^8509994147 is an apocalyptic number.

8509994147 is a deficient number, since it is larger than the sum of its proper divisors (540286189).

8509994147 is a wasteful number, since it uses less digits than its factorization.

8509994147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2205477.

The product of its (nonzero) digits is 3265920, while the sum is 56.

The square root of 8509994147 is about 92249.6295222913. The cubic root of 8509994147 is about 2041.6270937777.

The spelling of 8509994147 in words is "eight billion, five hundred nine million, nine hundred ninety-four thousand, one hundred forty-seven".