630251646152069 has 2 divisors, whose sum is σ = 630251646152070. Its totient is φ = 630251646152068.

The previous prime is 630251646152041. The next prime is 630251646152081. The reversal of 630251646152069 is 960251646152036.

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., 391966268267044 + 238285377885025 = 19798138^2 + 15436495^2 .

It is a cyclic number.

It is not a de Polignac number, because 630251646152069 - 2²⁴ = 630251629374853 is a prime.

It is a super-2 number, since 2×630251646152069² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630251645152069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315125823076034 + 315125823076035.

It is an arithmetic number, because the mean of its divisors is an integer number (315125823076035).

Almost surely, 2^{630251646152069} is an apocalyptic number.

It is an amenable number.

630251646152069 is a deficient number, since it is larger than the sum of its proper divisors (1).

630251646152069 is an equidigital number, since it uses as much as digits as its factorization.

630251646152069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13996800, while the sum is 56.

The spelling of 630251646152069 in words is "six hundred thirty trillion, two hundred fifty-one billion, six hundred forty-six million, one hundred fifty-two thousand, sixty-nine".