18000051000036 has 96 divisors (see below), whose sum is σ = 48294496588800. Its totient is φ = 5111429111424.

The previous prime is 18000051000031. The next prime is 18000051000037. The reversal of 18000051000036 is 63000015000081.

18000051000036 is a nontrivial binomial coefficient, being equal to C(6000009, 2).

It is not an unprimeable number, because it can be changed into a prime (18000051000031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8000011 + ... + 10000013.

It is an arithmetic number, because the mean of its divisors is an integer number (503067672800).

Almost surely, 2^{18000051000036} is an apocalyptic number.

18000051000036 is the 6000008-th triangular number.

It is an amenable number.

18000051000036 is an abundant number, since it is smaller than the sum of its proper divisors (30294445588764).

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

18000051000036 is a wasteful number, since it uses less digits than its factorization.

18000051000036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000673 (or 2000671 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The spelling of 18000051000036 in words is "eighteen trillion, fifty-one million, thirty-six", and thus it is an aban number and an uban number.