9780411843225 has 45 divisors (see below), whose sum is σ = 18116964303757. Its totient is φ = 5216144592960.

The previous prime is 9780411843203. The next prime is 9780411843233. The reversal of 9780411843225 is 5223481140879.

The square root of 9780411843225 is 3127365.

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

9780411843225 is a `hidden beast` number, since 9 + 78 + 0 + 4 + 118 + 432 + 25 = 666.

9780411843225 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 1984455411849 + 7795956431376 = 1408707^2 + 2792124^2 .

It is a tau number, because it is divible by the number of its divisors (45).

It is not a de Polignac number, because 9780411843225 - 2²⁷ = 9780277625497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 140696677 + ... + 140766173.

Almost surely, 2^{9780411843225} is an apocalyptic number.

9780411843225 is the 3127365-th square number.

9780411843225 is the 1563683-rd centered octagonal number.

It is an amenable number.

9780411843225 is a deficient number, since it is larger than the sum of its proper divisors (8336552460532).

9780411843225 is an frugal number, since it uses more digits than its factorization.

9780411843225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139016 (or 69505 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 9780411843225 in words is "nine trillion, seven hundred eighty billion, four hundred eleven million, eight hundred forty-three thousand, two hundred twenty-five".