622444544323612 has 72 divisors (see below), whose sum is σ = 1104191284283136. Its totient is φ = 306994770948096.

The previous prime is 622444544323559. The next prime is 622444544323639. The reversal of 622444544323612 is 216323445444226.

It is a self number, because there is not a number n which added to its sum of digits gives 622444544323612.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 87631214853 + ... + 87631221955.

It is an arithmetic number, because the mean of its divisors is an integer number (15335990059488).

Almost surely, 2^{622444544323612} is an apocalyptic number.

It is an amenable number.

622444544323612 is a deficient number, since it is larger than the sum of its proper divisors (481746739959524).

622444544323612 is a wasteful number, since it uses less digits than its factorization.

622444544323612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11375 (or 11144 counting only the distinct ones).

The product of its digits is 26542080, while the sum is 52.

Adding to 622444544323612 its reverse (216323445444226), we get a palindrome (838767989767838).

The spelling of 622444544323612 in words is "six hundred twenty-two trillion, four hundred forty-four billion, five hundred forty-four million, three hundred twenty-three thousand, six hundred twelve".