628506319444 has 12 divisors (see below), whose sum is σ = 1099926830464. Its totient is φ = 314241510744.

The previous prime is 628506319433. The next prime is 628506319447. The reversal of 628506319444 is 444913605826.

It is a junction number, because it is equal to n+sod(n) for n = 628506319391 and 628506319400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628506319447) 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 in 3 ways as a sum of consecutive naturals, for example, 2790282 + ... + 3007105.

Almost surely, 2^628506319444 is an apocalyptic number.

It is an amenable number.

628506319444 is a deficient number, since it is larger than the sum of its proper divisors (471420511020).

628506319444 is a wasteful number, since it uses less digits than its factorization.

628506319444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5824494 (or 5824492 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 52.

The spelling of 628506319444 in words is "six hundred twenty-eight billion, five hundred six million, three hundred nineteen thousand, four hundred forty-four".