3648065868 has 18 divisors (see below), whose sum is σ = 9221499924. Its totient is φ = 1216021944.

The previous prime is 3648065849. The next prime is 3648065879. The reversal of 3648065868 is 8685608463.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50667546 + ... + 50667617.

Almost surely, 2^3648065868 is an apocalyptic number.

It is an amenable number.

3648065868 is an abundant number, since it is smaller than the sum of its proper divisors (5573434056).

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

3648065868 is a wasteful number, since it uses less digits than its factorization.

3648065868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101335173 (or 101335168 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 54.

The square root of 3648065868 is about 60399.2207565627. The cubic root of 3648065868 is about 1539.4097175526.

The spelling of 3648065868 in words is "three billion, six hundred forty-eight million, sixty-five thousand, eight hundred sixty-eight".