18602755648 has 28 divisors (see below), whose sum is σ = 39086306892. Its totient is φ = 8754237440.

The previous prime is 18602755609. The next prime is 18602755673. The reversal of 18602755648 is 84655720681.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5732306944 + 12870448704 = 75712^2 + 113448^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18602755595 and 18602755604.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8547973 + ... + 8550148.

Almost surely, 2^18602755648 is an apocalyptic number.

It is an amenable number.

18602755648 is an abundant number, since it is smaller than the sum of its proper divisors (20483551244).

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

18602755648 is a wasteful number, since it uses less digits than its factorization.

18602755648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17098150 (or 17098140 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 52.

The spelling of 18602755648 in words is "eighteen billion, six hundred two million, seven hundred fifty-five thousand, six hundred forty-eight".