7738849225 has 18 divisors (see below), whose sum is σ = 10193868074. Its totient is φ = 5826892800.

The previous prime is 7738849199. The next prime is 7738849273. The reversal of 7738849225 is 5229488377.

It is a happy number.

It can be written as a sum of positive squares in 9 ways, for example, as 974938176 + 6763911049 = 31224^2 + 82243^2 .

It is not a de Polignac number, because 7738849225 - 2¹¹ = 7738847177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 528336 + ... + 542785.

Almost surely, 2^7738849225 is an apocalyptic number.

It is an amenable number.

7738849225 is a deficient number, since it is larger than the sum of its proper divisors (2455018849).

7738849225 is a wasteful number, since it uses less digits than its factorization.

7738849225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071165 (or 1071143 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 55.

The square root of 7738849225 is about 87970.7293649427. The cubic root of 7738849225 is about 1977.9962404887.

The spelling of 7738849225 in words is "seven billion, seven hundred thirty-eight million, eight hundred forty-nine thousand, two hundred twenty-five".