8457816648 has 16 divisors (see below), whose sum is σ = 21144541680. Its totient is φ = 2819272208.

The previous prime is 8457816637. The next prime is 8457816649. The reversal of 8457816648 is 8466187548.

It is not an unprimeable number, because it can be changed into a prime (8457816649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176204490 + ... + 176204537.

It is an arithmetic number, because the mean of its divisors is an integer number (1321533855).

Almost surely, 2^8457816648 is an apocalyptic number.

It is an amenable number.

8457816648 is an abundant number, since it is smaller than the sum of its proper divisors (12686725032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8457816648 is a wasteful number, since it uses less digits than its factorization.

8457816648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352409036 (or 352409032 counting only the distinct ones).

The product of its digits is 10321920, while the sum is 57.

The square root of 8457816648 is about 91966.3886863021. The cubic root of 8457816648 is about 2037.4459135680.

The spelling of 8457816648 in words is "eight billion, four hundred fifty-seven million, eight hundred sixteen thousand, six hundred forty-eight".