18632521142 has 8 divisors (see below), whose sum is σ = 28302564000. Its totient is φ = 9198333144.

The previous prime is 18632521123. The next prime is 18632521153. The reversal of 18632521142 is 24112523681.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58963517 + ... + 58963832.

It is an arithmetic number, because the mean of its divisors is an integer number (3537820500).

Almost surely, 2^18632521142 is an apocalyptic number.

18632521142 is a deficient number, since it is larger than the sum of its proper divisors (9670042858).

18632521142 is a wasteful number, since it uses less digits than its factorization.

18632521142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117927430.

The product of its digits is 23040, while the sum is 35.

The spelling of 18632521142 in words is "eighteen billion, six hundred thirty-two million, five hundred twenty-one thousand, one hundred forty-two".