6441324669 has 12 divisors (see below), whose sum is σ = 10019838556. Its totient is φ = 3963892032.

The previous prime is 6441324623. The next prime is 6441324671. The reversal of 6441324669 is 9664231446.

It can be written as a sum of positive squares in 2 ways, for example, as 1377152100 + 5064172569 = 37110^2 + 71163^2 .

It is not a de Polignac number, because 6441324669 - 2²¹ = 6439227517 is a prime.

It is a super-2 number, since 2×6441324669² = 82981326982935919122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6441324689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27526912 + ... + 27527145.

Almost surely, 2^6441324669 is an apocalyptic number.

It is an amenable number.

6441324669 is a deficient number, since it is larger than the sum of its proper divisors (3578513887).

6441324669 is a wasteful number, since it uses less digits than its factorization.

6441324669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55054076 (or 55054073 counting only the distinct ones).

The product of its digits is 746496, while the sum is 45.

The square root of 6441324669 is about 80257.8635960365. The cubic root of 6441324669 is about 1860.6230491633.

The spelling of 6441324669 in words is "six billion, four hundred forty-one million, three hundred twenty-four thousand, six hundred sixty-nine".