627957763969 has 2 divisors, whose sum is σ = 627957763970. Its totient is φ = 627957763968.

The previous prime is 627957763933. The next prime is 627957763997. The reversal of 627957763969 is 969367759726.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 608301723969 + 19656040000 = 779937^2 + 140200^2 .

It is a cyclic number.

It is not a de Polignac number, because 627957763969 - 2⁷ = 627957763841 is a prime.

It is a super-2 number, since 2×627957763969² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 627957763895 and 627957763904.

It is not a weakly prime, because it can be changed into another prime (627957763919) 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 as a sum of consecutive naturals, namely, 313978881984 + 313978881985.

It is an arithmetic number, because the mean of its divisors is an integer number (313978881985).

Almost surely, 2^627957763969 is an apocalyptic number.

It is an amenable number.

627957763969 is a deficient number, since it is larger than the sum of its proper divisors (1).

627957763969 is an equidigital number, since it uses as much as digits as its factorization.

627957763969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620304560, while the sum is 76.

The spelling of 627957763969 in words is "six hundred twenty-seven billion, nine hundred fifty-seven million, seven hundred sixty-three thousand, nine hundred sixty-nine".