3873870286225 has 27 divisors (see below), whose sum is σ = 4937399081937. Its totient is φ = 3015053448480.

The previous prime is 3873870286213. The next prime is 3873870286241. The reversal of 3873870286225 is 5226820783783.

The square root of 3873870286225 is 1968215.

It is a perfect power (a square), and thus also a powerful number.

3873870286225 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 4 ways, for example, as 367748854929 + 3506121431296 = 606423^2 + 1872464^2 .

It is not a de Polignac number, because 3873870286225 - 2¹¹ = 3873870284177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 364114456 + ... + 364125094.

Almost surely, 2^{3873870286225} is an apocalyptic number.

3873870286225 is the 1968215-th square number.

3873870286225 is the 984108-th centered octagonal number.

It is an amenable number.

3873870286225 is a deficient number, since it is larger than the sum of its proper divisors (1063528795712).

3873870286225 is an frugal number, since it uses more digits than its factorization.

3873870286225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21362 (or 10681 counting only the distinct ones).

The product of its (nonzero) digits is 54190080, while the sum is 61.

The spelling of 3873870286225 in words is "three trillion, eight hundred seventy-three billion, eight hundred seventy million, two hundred eighty-six thousand, two hundred twenty-five".