628720586049 has 16 divisors (see below), whose sum is σ = 849365637120. Its totient is φ = 413617049040.

The previous prime is 628720586029. The next prime is 628720586057. The reversal of 628720586049 is 940685027826.

It is a happy number.

It is not a de Polignac number, because 628720586049 - 2¹² = 628720581953 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 628720586049.

It is not an unprimeable number, because it can be changed into a prime (628720586009) 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 15 ways as a sum of consecutive naturals, for example, 280407 + ... + 1155884.

It is an arithmetic number, because the mean of its divisors is an integer number (53085352320).

Almost surely, 2^628720586049 is an apocalyptic number.

It is an amenable number.

628720586049 is a deficient number, since it is larger than the sum of its proper divisors (220645051071).

628720586049 is a wasteful number, since it uses less digits than its factorization.

628720586049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438220.

The product of its (nonzero) digits is 11612160, while the sum is 57.

The spelling of 628720586049 in words is "six hundred twenty-eight billion, seven hundred twenty million, five hundred eighty-six thousand, forty-nine".