6524489668 has 6 divisors (see below), whose sum is σ = 11417856926. Its totient is φ = 3262244832.

The previous prime is 6524489633. The next prime is 6524489669. The reversal of 6524489668 is 8669844256.

It can be written as a sum of positive squares in only one way, i.e., 4409225604 + 2115264064 = 66402^2 + 45992^2 .

It is not an unprimeable number, because it can be changed into a prime (6524489669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 815561205 + ... + 815561212.

Almost surely, 2^6524489668 is an apocalyptic number.

It is an amenable number.

6524489668 is a deficient number, since it is larger than the sum of its proper divisors (4893367258).

6524489668 is a wasteful number, since it uses less digits than its factorization.

6524489668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631122421 (or 1631122419 counting only the distinct ones).

The product of its digits is 19906560, while the sum is 58.

The square root of 6524489668 is about 80774.3131694724. The cubic root of 6524489668 is about 1868.5964348511.

The spelling of 6524489668 in words is "six billion, five hundred twenty-four million, four hundred eighty-nine thousand, six hundred sixty-eight".