36018137740640 has 144 divisors (see below), whose sum is σ = 93568718787264. Its totient is φ = 13092336322560.

The previous prime is 36018137740561. The next prime is 36018137740643. The reversal of 36018137740640 is 4604773181063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36018137740643) 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, 48866684 + ... + 49598276.

It is an arithmetic number, because the mean of its divisors is an integer number (649782769356).

Almost surely, 2^{36018137740640} 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 36018137740640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46784359393632).

36018137740640 is an abundant number, since it is smaller than the sum of its proper divisors (57550581046624).

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

36018137740640 is a wasteful number, since it uses less digits than its factorization.

36018137740640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734173 (or 734154 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 50.

The spelling of 36018137740640 in words is "thirty-six trillion, eighteen billion, one hundred thirty-seven million, seven hundred forty thousand, six hundred forty".