8868449791 has 4 divisors (see below), whose sum is σ = 8870041584. Its totient is φ = 8866858000.

The previous prime is 8868449761. The next prime is 8868449801. The reversal of 8868449791 is 1979448688.

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

It is a cyclic number.

It is not a de Polignac number, because 8868449791 - 2¹⁵ = 8868417023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8868449761) 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 3 ways as a sum of consecutive naturals, for example, 787510 + ... + 798691.

It is an arithmetic number, because the mean of its divisors is an integer number (2217510396).

Almost surely, 2^8868449791 is an apocalyptic number.

8868449791 is a deficient number, since it is larger than the sum of its proper divisors (1591793).

8868449791 is a wasteful number, since it uses less digits than its factorization.

8868449791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591792.

The product of its digits is 27869184, while the sum is 64.

The square root of 8868449791 is about 94172.4470904309. The cubic root of 8868449791 is about 2069.8993930737.

The spelling of 8868449791 in words is "eight billion, eight hundred sixty-eight million, four hundred forty-nine thousand, seven hundred ninety-one".