36021734172 has 72 divisors (see below), whose sum is σ = 93196014912. Its totient is φ = 11726025600.

The previous prime is 36021734143. The next prime is 36021734179. The reversal of 36021734172 is 27143712063.

36021734172 is a `hidden beast` number, since 3 + 602 + 1 + 7 + 3 + 41 + 7 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36021734179) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 756922 + ... + 803102.

It is an arithmetic number, because the mean of its divisors is an integer number (1294389096).

Almost surely, 2^36021734172 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 36021734172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46598007456).

36021734172 is an abundant number, since it is smaller than the sum of its proper divisors (57174280740).

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

36021734172 is a wasteful number, since it uses less digits than its factorization.

36021734172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46699 (or 46694 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The spelling of 36021734172 in words is "thirty-six billion, twenty-one million, seven hundred thirty-four thousand, one hundred seventy-two".