6621364841 has 24 divisors (see below), whose sum is σ = 8326704960. Its totient is φ = 5127260832.

The previous prime is 6621364817. The next prime is 6621364877. The reversal of 6621364841 is 1484631266.

It is a happy number.

It is not a de Polignac number, because 6621364841 - 2¹⁰ = 6621363817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6621364241) 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 in 23 ways as a sum of consecutive naturals, for example, 184550 + ... + 217488.

It is an arithmetic number, because the mean of its divisors is an integer number (346946040).

Almost surely, 2^6621364841 is an apocalyptic number.

It is an amenable number.

6621364841 is a deficient number, since it is larger than the sum of its proper divisors (1705340119).

6621364841 is a wasteful number, since it uses less digits than its factorization.

6621364841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33053 (or 33006 counting only the distinct ones).

The product of its digits is 165888, while the sum is 41.

The square root of 6621364841 is about 81371.7693122129. The cubic root of 6621364841 is about 1877.7992998983.

The spelling of 6621364841 in words is "six billion, six hundred twenty-one million, three hundred sixty-four thousand, eight hundred forty-one".