6448888529 has 2 divisors, whose sum is σ = 6448888530. Its totient is φ = 6448888528.

The previous prime is 6448888441. The next prime is 6448888559. The reversal of 6448888529 is 9258888446.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5998812304 + 450076225 = 77452^2 + 21215^2 .

It is a cyclic number.

It is not a de Polignac number, because 6448888529 - 2¹² = 6448884433 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6448888559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3224444264 + 3224444265.

It is an arithmetic number, because the mean of its divisors is an integer number (3224444265).

Almost surely, 2^6448888529 is an apocalyptic number.

It is an amenable number.

6448888529 is a deficient number, since it is larger than the sum of its proper divisors (1).

6448888529 is an equidigital number, since it uses as much as digits as its factorization.

6448888529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35389440, while the sum is 62.

The square root of 6448888529 is about 80304.9720067195. The cubic root of 6448888529 is about 1861.3510561015.

The spelling of 6448888529 in words is "six billion, four hundred forty-eight million, eight hundred eighty-eight thousand, five hundred twenty-nine".