630234718019 has 2 divisors, whose sum is σ = 630234718020. Its totient is φ = 630234718018.

The previous prime is 630234717989. The next prime is 630234718021. The reversal of 630234718019 is 910817432036.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 630234718019 - 2¹⁶ = 630234652483 is a prime.

It is a super-2 number, since 2×630234718019² (a number of 24 digits) contains 22 as substring.

Together with 630234718021, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (630234718079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315117359009 + 315117359010.

It is an arithmetic number, because the mean of its divisors is an integer number (315117359010).

Almost surely, 2^630234718019 is an apocalyptic number.

630234718019 is a deficient number, since it is larger than the sum of its proper divisors (1).

630234718019 is an equidigital number, since it uses as much as digits as its factorization.

630234718019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 630234718019 in words is "six hundred thirty billion, two hundred thirty-four million, seven hundred eighteen thousand, nineteen".