3873216328720 has 20 divisors (see below), whose sum is σ = 9005227964460. Its totient is φ = 1549286531456.

The previous prime is 3873216328687. The next prime is 3873216328739. The reversal of 3873216328720 is 278236123783.

It is a happy number.

3873216328720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2185950422016 + 1687265906704 = 1478496^2 + 1298948^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24207601975 + ... + 24207602134.

It is an arithmetic number, because the mean of its divisors is an integer number (450261398223).

Almost surely, 2^{3873216328720} is an apocalyptic number.

It is an amenable number.

3873216328720 is an abundant number, since it is smaller than the sum of its proper divisors (5132011635740).

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

3873216328720 is a wasteful number, since it uses less digits than its factorization.

3873216328720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48415204122 (or 48415204116 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 52.

The spelling of 3873216328720 in words is "three trillion, eight hundred seventy-three billion, two hundred sixteen million, three hundred twenty-eight thousand, seven hundred twenty".