2184945012181 has 16 divisors (see below), whose sum is σ = 2222395920000. Its totient is φ = 2147688345600.

The previous prime is 2184945012091. The next prime is 2184945012199. The reversal of 2184945012181 is 1812105494812.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2184945012181 is a prime.

It is a super-2 number, since 2×2184945012181² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2184945012881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35717301 + ... + 35778421.

It is an arithmetic number, because the mean of its divisors is an integer number (138899745000).

Almost surely, 2^{2184945012181} is an apocalyptic number.

It is an amenable number.

2184945012181 is a deficient number, since it is larger than the sum of its proper divisors (37450907819).

2184945012181 is a wasteful number, since it uses less digits than its factorization.

2184945012181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62700.

The product of its (nonzero) digits is 184320, while the sum is 46.

The spelling of 2184945012181 in words is "two trillion, one hundred eighty-four billion, nine hundred forty-five million, twelve thousand, one hundred eighty-one".