18632641948089 has 32 divisors (see below), whose sum is σ = 27265797189120. Its totient is φ = 11248989702912.

The previous prime is 18632641948087. The next prime is 18632641948093. The reversal of 18632641948089 is 98084914623681.

It is not a de Polignac number, because 18632641948089 - 2¹ = 18632641948087 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18632641948087) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18776142 + ... + 19743575.

It is an arithmetic number, because the mean of its divisors is an integer number (852056162160).

Almost surely, 2^{18632641948089} is an apocalyptic number.

It is an amenable number.

18632641948089 is a deficient number, since it is larger than the sum of its proper divisors (8633155241031).

18632641948089 is a wasteful number, since it uses less digits than its factorization.

18632641948089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38519969.

The product of its (nonzero) digits is 143327232, while the sum is 69.

The spelling of 18632641948089 in words is "eighteen trillion, six hundred thirty-two billion, six hundred forty-one million, nine hundred forty-eight thousand, eighty-nine".