628321446229 has 2 divisors, whose sum is σ = 628321446230. Its totient is φ = 628321446228.

The previous prime is 628321446209. The next prime is 628321446293. The reversal of 628321446229 is 922644123826.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 614107322500 + 14214123729 = 783650^2 + 119223^2 .

It is a cyclic number.

It is not a de Polignac number, because 628321446229 - 2²⁵ = 628287891797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (628321446209) 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, 314160723114 + 314160723115.

It is an arithmetic number, because the mean of its divisors is an integer number (314160723115).

Almost surely, 2^628321446229 is an apocalyptic number.

It is an amenable number.

628321446229 is a deficient number, since it is larger than the sum of its proper divisors (1).

628321446229 is an equidigital number, since it uses as much as digits as its factorization.

628321446229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1990656, while the sum is 49.

The spelling of 628321446229 in words is "six hundred twenty-eight billion, three hundred twenty-one million, four hundred forty-six thousand, two hundred twenty-nine".