630275916779 has 2 divisors, whose sum is σ = 630275916780. Its totient is φ = 630275916778.

The previous prime is 630275916757. The next prime is 630275916857. The reversal of 630275916779 is 977619572036.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-630275916779 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (630275916709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315137958389 + 315137958390.

It is an arithmetic number, because the mean of its divisors is an integer number (315137958390).

Almost surely, 2^630275916779 is an apocalyptic number.

630275916779 is a deficient number, since it is larger than the sum of its proper divisors (1).

630275916779 is an equidigital number, since it uses as much as digits as its factorization.

630275916779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30005640, while the sum is 62.

The spelling of 630275916779 in words is "six hundred thirty billion, two hundred seventy-five million, nine hundred sixteen thousand, seven hundred seventy-nine".