628781045713 has 2 divisors, whose sum is σ = 628781045714. Its totient is φ = 628781045712.

The previous prime is 628781045699. The next prime is 628781045777. The reversal of 628781045713 is 317540187826.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 627655309009 + 1125736704 = 792247^2 + 33552^2 .

It is a cyclic number.

It is not a de Polignac number, because 628781045713 - 2⁹ = 628781045201 is a prime.

It is not a weakly prime, because it can be changed into another prime (628781045813) 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, 314390522856 + 314390522857.

It is an arithmetic number, because the mean of its divisors is an integer number (314390522857).

Almost surely, 2^628781045713 is an apocalyptic number.

It is an amenable number.

628781045713 is a deficient number, since it is larger than the sum of its proper divisors (1).

628781045713 is an equidigital number, since it uses as much as digits as its factorization.

628781045713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2257920, while the sum is 52.

The spelling of 628781045713 in words is "six hundred twenty-eight billion, seven hundred eighty-one million, forty-five thousand, seven hundred thirteen".