627644444765249 has 2 divisors, whose sum is σ = 627644444765250. Its totient is φ = 627644444765248.

The previous prime is 627644444765213. The next prime is 627644444765287. The reversal of 627644444765249 is 942567444446726.

627644444765249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 359506931006224 + 268137513759025 = 18960668^2 + 16374905^2 .

It is a cyclic number.

It is not a de Polignac number, because 627644444765249 - 2¹² = 627644444761153 is a prime.

It is not a weakly prime, because it can be changed into another prime (627644644765249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313822222382624 + 313822222382625.

It is an arithmetic number, because the mean of its divisors is an integer number (313822222382625).

Almost surely, 2^{627644444765249} is an apocalyptic number.

It is an amenable number.

627644444765249 is a deficient number, since it is larger than the sum of its proper divisors (1).

627644444765249 is an equidigital number, since it uses as much as digits as its factorization.

627644444765249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7803371520, while the sum is 74.

The spelling of 627644444765249 in words is "six hundred twenty-seven trillion, six hundred forty-four billion, four hundred forty-four million, seven hundred sixty-five thousand, two hundred forty-nine".