8647049518 has 4 divisors (see below), whose sum is σ = 12970574280. Its totient is φ = 4323524758.

The previous prime is 8647049501. The next prime is 8647049557. The reversal of 8647049518 is 8159407468.

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, 2161762378 + ... + 2161762381.

It is an arithmetic number, because the mean of its divisors is an integer number (3242643570).

Almost surely, 2^8647049518 is an apocalyptic number.

8647049518 is a deficient number, since it is larger than the sum of its proper divisors (4323524762).

8647049518 is a wasteful number, since it uses less digits than its factorization.

8647049518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4323524761.

The product of its (nonzero) digits is 1935360, while the sum is 52.

The square root of 8647049518 is about 92989.5129463533. The cubic root of 8647049518 is about 2052.5290632903.

The spelling of 8647049518 in words is "eight billion, six hundred forty-seven million, forty-nine thousand, five hundred eighteen".