622644640424 has 16 divisors (see below), whose sum is σ = 1167872882400. Its totient is φ = 311211871792.

The previous prime is 622644640421. The next prime is 622644640439. The reversal of 622644640424 is 424046446226.

It is not an unprimeable number, because it can be changed into a prime (622644640421) 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 in 3 ways as a sum of consecutive naturals, for example, 13782092 + ... + 13827195.

It is an arithmetic number, because the mean of its divisors is an integer number (72992055150).

Almost surely, 2^622644640424 is an apocalyptic number.

It is an amenable number.

622644640424 is a deficient number, since it is larger than the sum of its proper divisors (545228241976).

622644640424 is a wasteful number, since it uses less digits than its factorization.

622644640424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27612112 (or 27612108 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 44.

The spelling of 622644640424 in words is "six hundred twenty-two billion, six hundred forty-four million, six hundred forty thousand, four hundred twenty-four".