8791648845 has 48 divisors (see below), whose sum is σ = 16927522560. Its totient is φ = 3880442496.

The previous prime is 8791648843. The next prime is 8791648849. The reversal of 8791648845 is 5488461978.

It is not a de Polignac number, because 8791648845 - 2¹ = 8791648843 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8791648841) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 184917 + ... + 227546.

It is an arithmetic number, because the mean of its divisors is an integer number (352656720).

Almost surely, 2^8791648845 is an apocalyptic number.

It is an amenable number.

8791648845 is a deficient number, since it is larger than the sum of its proper divisors (8135873715).

8791648845 is a wasteful number, since it uses less digits than its factorization.

8791648845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412514 (or 412507 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 60.

The square root of 8791648845 is about 93763.7928253758. The cubic root of 8791648845 is about 2063.9069385115.

The spelling of 8791648845 in words is "eight billion, seven hundred ninety-one million, six hundred forty-eight thousand, eight hundred forty-five".