18633348632 has 16 divisors (see below), whose sum is σ = 34941558600. Its totient is φ = 9315599680.

The previous prime is 18633348631. The next prime is 18633348637. The reversal of 18633348632 is 23684333681.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18633348631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58094 + ... + 201597.

Almost surely, 2^18633348632 is an apocalyptic number.

It is an amenable number.

18633348632 is a deficient number, since it is larger than the sum of its proper divisors (16308209968).

18633348632 is a wasteful number, since it uses less digits than its factorization.

18633348632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268666 (or 268662 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 47.

The spelling of 18633348632 in words is "eighteen billion, six hundred thirty-three million, three hundred forty-eight thousand, six hundred thirty-two".