18041472036 has 192 divisors, whose sum is σ = 54243893760. Its totient is φ = 5079283200.

The previous prime is 18041472019. The next prime is 18041472073. The reversal of 18041472036 is 63027414081.

18041472036 is a `hidden beast` number, since 180 + 4 + 1 + 472 + 0 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 21150186 + ... + 21151038.

It is an arithmetic number, because the mean of its divisors is an integer number (282520280).

Almost surely, 2^18041472036 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 18041472036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27121946880).

18041472036 is an abundant number, since it is smaller than the sum of its proper divisors (36202421724).

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

18041472036 is a wasteful number, since it uses less digits than its factorization.

18041472036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251 (or 1243 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 18041472036 in words is "eighteen billion, forty-one million, four hundred seventy-two thousand, thirty-six".