8994841509 has 8 divisors (see below), whose sum is σ = 12624339040. Its totient is φ = 5680952496.

The previous prime is 8994841483. The next prime is 8994841601. The reversal of 8994841509 is 9051484998.

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

It is not a de Polignac number, because 8994841509 - 2⁷ = 8994841381 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57), and also a Moran number because the ratio is a prime number: 157804237 = 8994841509 / (8 + 9 + 9 + 4 + 8 + 4 + 1 + 5 + 0 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8994841109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78902062 + ... + 78902175.

It is an arithmetic number, because the mean of its divisors is an integer number (1578042380).

Almost surely, 2^8994841509 is an apocalyptic number.

It is an amenable number.

8994841509 is a deficient number, since it is larger than the sum of its proper divisors (3629497531).

8994841509 is a wasteful number, since it uses less digits than its factorization.

8994841509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157804259.

The product of its (nonzero) digits is 3732480, while the sum is 57.

The square root of 8994841509 is about 94841.1382734307. The cubic root of 8994841509 is about 2079.6863362232.

The spelling of 8994841509 in words is "eight billion, nine hundred ninety-four million, eight hundred forty-one thousand, five hundred nine".