2868687648 has 72 divisors (see below), whose sum is σ = 8238684636. Its totient is φ = 946752000.

The previous prime is 2868687607. The next prime is 2868687667. The reversal of 2868687648 is 8467868682.

2868687648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1762992144 + 1105695504 = 41988^2 + 33252^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20223 + ... + 78398.

Almost surely, 2^2868687648 is an apocalyptic number.

It is an amenable number.

2868687648 is an abundant number, since it is smaller than the sum of its proper divisors (5369996988).

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

2868687648 is a wasteful number, since it uses less digits than its factorization.

2868687648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98738 (or 98727 counting only the distinct ones).

The product of its digits is 49545216, while the sum is 63.

The square root of 2868687648 is about 53560.1311424832. The cubic root of 2868687648 is about 1420.8920613131.

The spelling of 2868687648 in words is "two billion, eight hundred sixty-eight million, six hundred eighty-seven thousand, six hundred forty-eight".