629020649617 has 2 divisors, whose sum is σ = 629020649618. Its totient is φ = 629020649616.

The previous prime is 629020649591. The next prime is 629020649623. The reversal of 629020649617 is 716946020926.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 600476209216 + 28544440401 = 774904^2 + 168951^2 .

It is a cyclic number.

It is not a de Polignac number, because 629020649617 - 2¹¹ = 629020647569 is a prime.

It is a super-3 number, since 3×629020649617³ (a number of 36 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (629020649657) 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, 314510324808 + 314510324809.

It is an arithmetic number, because the mean of its divisors is an integer number (314510324809).

Almost surely, 2^629020649617 is an apocalyptic number.

It is an amenable number.

629020649617 is a deficient number, since it is larger than the sum of its proper divisors (1).

629020649617 is an equidigital number, since it uses as much as digits as its factorization.

629020649617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1959552, while the sum is 52.

The spelling of 629020649617 in words is "six hundred twenty-nine billion, twenty million, six hundred forty-nine thousand, six hundred seventeen".