36018781632 has 168 divisors, whose sum is σ = 110024119296. Its totient is φ = 11239709184.

The previous prime is 36018781621. The next prime is 36018781633. The reversal of 36018781632 is 23618781063.

36018781632 is a `hidden beast` number, since 3 + 6 + 0 + 1 + 8 + 7 + 8 + 1 + 632 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36018781633) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 593733 + ... + 651579.

It is an arithmetic number, because the mean of its divisors is an integer number (654905472).

Almost surely, 2^36018781632 is an apocalyptic number.

36018781632 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36018781632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55012059648).

36018781632 is an abundant number, since it is smaller than the sum of its proper divisors (74005337664).

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

36018781632 is a wasteful number, since it uses less digits than its factorization.

36018781632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57935 (or 57922 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 36018781632 in words is "thirty-six billion, eighteen million, seven hundred eighty-one thousand, six hundred thirty-two".