9824996215225 has 81 divisors (see below), whose sum is σ = 12734015174829. Its totient is φ = 7519754894400.

The previous prime is 9824996215219. The next prime is 9824996215267. The reversal of 9824996215225 is 5225126994289.

The square root of 9824996215225 is 3134485.

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

It can be written as a sum of positive squares in 4 ways, for example, as 4525571220921 + 5299424994304 = 2127339^2 + 2302048^2 .

It is not a de Polignac number, because 9824996215225 - 2²⁷ = 9824861997497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 41108770656 + ... + 41108770894.

Almost surely, 2^{9824996215225} is an apocalyptic number.

9824996215225 is the 3134485-th square number.

9824996215225 is the 1567243-rd centered octagonal number.

It is an amenable number.

9824996215225 is a deficient number, since it is larger than the sum of its proper divisors (2909018959604).

9824996215225 is an frugal number, since it uses more digits than its factorization.

9824996215225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696 (or 348 counting only the distinct ones).

The product of its digits is 55987200, while the sum is 64.

Multiplying 9824996215225 by its sum of digits (64), we get a square (628799757774400 = 25075880²).

The spelling of 9824996215225 in words is "nine trillion, eight hundred twenty-four billion, nine hundred ninety-six million, two hundred fifteen thousand, two hundred twenty-five".