8947509118 has 4 divisors (see below), whose sum is σ = 13421263680. Its totient is φ = 4473754558.

The previous prime is 8947509107. The next prime is 8947509121. The reversal of 8947509118 is 8119057498.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2236877278 + ... + 2236877281.

It is an arithmetic number, because the mean of its divisors is an integer number (3355315920).

Almost surely, 2^8947509118 is an apocalyptic number.

8947509118 is a deficient number, since it is larger than the sum of its proper divisors (4473754562).

8947509118 is a wasteful number, since it uses less digits than its factorization.

8947509118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4473754561.

The product of its (nonzero) digits is 725760, while the sum is 52.

The square root of 8947509118 is about 94591.2740055868. The cubic root of 8947509118 is about 2076.0320307142.

The spelling of 8947509118 in words is "eight billion, nine hundred forty-seven million, five hundred nine thousand, one hundred eighteen".