628634919053 has 2 divisors, whose sum is σ = 628634919054. Its totient is φ = 628634919052.

The previous prime is 628634919047. The next prime is 628634919127. The reversal of 628634919053 is 350919436826.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 332805533449 + 295829385604 = 576893^2 + 543902^2 .

It is a cyclic number.

It is not a de Polignac number, because 628634919053 - 2¹⁰ = 628634918029 is a prime.

It is a super-2 number, since 2×628634919053² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 628634919053.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (628634919013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314317459526 + 314317459527.

It is an arithmetic number, because the mean of its divisors is an integer number (314317459527).

Almost surely, 2^628634919053 is an apocalyptic number.

It is an amenable number.

628634919053 is a deficient number, since it is larger than the sum of its proper divisors (1).

628634919053 is an equidigital number, since it uses as much as digits as its factorization.

628634919053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8398080, while the sum is 56.

The spelling of 628634919053 in words is "six hundred twenty-eight billion, six hundred thirty-four million, nine hundred nineteen thousand, fifty-three".