2144173731872 has 48 divisors (see below), whose sum is σ = 4429215266112. Its totient is φ = 1019808725760.

The previous prime is 2144173731859. The next prime is 2144173731883. The reversal of 2144173731872 is 2781373714412.

It is a self number, because there is not a number n which added to its sum of digits gives 2144173731872.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7914518 + ... + 8180949.

It is an arithmetic number, because the mean of its divisors is an integer number (92275318044).

Almost surely, 2^{2144173731872} is an apocalyptic number.

It is an amenable number.

2144173731872 is an abundant number, since it is smaller than the sum of its proper divisors (2285041534240).

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

2144173731872 is a wasteful number, since it uses less digits than its factorization.

2144173731872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16095681 (or 16095673 counting only the distinct ones).

The product of its digits is 1580544, while the sum is 50.

The spelling of 2144173731872 in words is "two trillion, one hundred forty-four billion, one hundred seventy-three million, seven hundred thirty-one thousand, eight hundred seventy-two".