18047627232 has 48 divisors (see below), whose sum is σ = 47504201472. Its totient is φ = 5999472000.

The previous prime is 18047627209. The next prime is 18047627239. The reversal of 18047627232 is 23272674081.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18047627239) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 220894 + ... + 291357.

It is an arithmetic number, because the mean of its divisors is an integer number (989670864).

Almost surely, 2^18047627232 is an apocalyptic number.

18047627232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18047627232 is an abundant number, since it is smaller than the sum of its proper divisors (29456574240).

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

18047627232 is a wasteful number, since it uses less digits than its factorization.

18047627232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512631 (or 512623 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 42.

The spelling of 18047627232 in words is "eighteen billion, forty-seven million, six hundred twenty-seven thousand, two hundred thirty-two".