9777448225 has 12 divisors (see below), whose sum is σ = 12125521660. Its totient is φ = 7821000000.

The previous prime is 9777448207. The next prime is 9777448229. The reversal of 9777448225 is 5228447779.

It can be written as a sum of positive squares in 6 ways, for example, as 190688481 + 9586759744 = 13809^2 + 97912^2 .

It is not a de Polignac number, because 9777448225 - 2²¹ = 9775351073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9777448229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 241975 + ... + 279475.

Almost surely, 2^9777448225 is an apocalyptic number.

It is an amenable number.

9777448225 is a deficient number, since it is larger than the sum of its proper divisors (2348073435).

9777448225 is a wasteful number, since it uses less digits than its factorization.

9777448225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47940 (or 47935 counting only the distinct ones).

The product of its digits is 7902720, while the sum is 55.

The square root of 9777448225 is about 98880.9800972867. The cubic root of 9777448225 is about 2138.3321958217.

The spelling of 9777448225 in words is "nine billion, seven hundred seventy-seven million, four hundred forty-eight thousand, two hundred twenty-five".