627798756493 has 2 divisors, whose sum is σ = 627798756494. Its totient is φ = 627798756492.

The previous prime is 627798756479. The next prime is 627798756539. The reversal of 627798756493 is 394657897726.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 416357886564 + 211440869929 = 645258^2 + 459827^2 .

It is a cyclic number.

It is not a de Polignac number, because 627798756493 - 2³³ = 619208821901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (627798756433) 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, 313899378246 + 313899378247.

It is an arithmetic number, because the mean of its divisors is an integer number (313899378247).

Almost surely, 2^627798756493 is an apocalyptic number.

It is an amenable number.

627798756493 is a deficient number, since it is larger than the sum of its proper divisors (1).

627798756493 is an equidigital number, since it uses as much as digits as its factorization.

627798756493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960180480, while the sum is 73.

The spelling of 627798756493 in words is "six hundred twenty-seven billion, seven hundred ninety-eight million, seven hundred fifty-six thousand, four hundred ninety-three".