18241239132 has 18 divisors (see below), whose sum is σ = 46109799008. Its totient is φ = 6080413032.

The previous prime is 18241239103. The next prime is 18241239169. The reversal of 18241239132 is 23193214281.

18241239132 is a `hidden beast` number, since 1 + 82 + 412 + 39 + 132 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×18241239132² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 506701087 = 18241239132 / (1 + 8 + 2 + 4 + 1 + 2 + 3 + 9 + 1 + 3 + 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 253350508 + ... + 253350579.

Almost surely, 2^18241239132 is an apocalyptic number.

18241239132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18241239132 is an abundant number, since it is smaller than the sum of its proper divisors (27868559876).

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

18241239132 is a wasteful number, since it uses less digits than its factorization.

18241239132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506701097 (or 506701092 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The spelling of 18241239132 in words is "eighteen billion, two hundred forty-one million, two hundred thirty-nine thousand, one hundred thirty-two".