18053878232 has 64 divisors (see below), whose sum is σ = 37081044000. Its totient is φ = 8190627840.

The previous prime is 18053878231. The next prime is 18053878279. The reversal of 18053878232 is 23287835081.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18053878231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1497107 + ... + 1509117.

Almost surely, 2^18053878232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18053878232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18540522000).

18053878232 is an abundant number, since it is smaller than the sum of its proper divisors (19027165768).

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

18053878232 is a wasteful number, since it uses less digits than its factorization.

18053878232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12276 (or 12272 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 18053878232 in words is "eighteen billion, fifty-three million, eight hundred seventy-eight thousand, two hundred thirty-two".