630813422969 has 2 divisors, whose sum is σ = 630813422970. Its totient is φ = 630813422968.

The previous prime is 630813422927. The next prime is 630813423217. The reversal of 630813422969 is 969224318036.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 590938125625 + 39875297344 = 768725^2 + 199688^2 .

It is a cyclic number.

It is not a de Polignac number, because 630813422969 - 2²⁴ = 630796645753 is a prime.

It is a super-2 number, since 2×630813422969² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 630813422969.

It is not a weakly prime, because it can be changed into another prime (630813425969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315406711484 + 315406711485.

It is an arithmetic number, because the mean of its divisors is an integer number (315406711485).

Almost surely, 2^630813422969 is an apocalyptic number.

It is an amenable number.

630813422969 is a deficient number, since it is larger than the sum of its proper divisors (1).

630813422969 is an equidigital number, since it uses as much as digits as its factorization.

630813422969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3359232, while the sum is 53.

The spelling of 630813422969 in words is "six hundred thirty billion, eight hundred thirteen million, four hundred twenty-two thousand, nine hundred sixty-nine".