630687919747 has 2 divisors, whose sum is σ = 630687919748. Its totient is φ = 630687919746.

The previous prime is 630687919709. The next prime is 630687919789. The reversal of 630687919747 is 747919786036.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 630687919747 - 2²⁷ = 630553702019 is a prime.

It is a super-2 number, since 2×630687919747² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (630687911747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315343959873 + 315343959874.

It is an arithmetic number, because the mean of its divisors is an integer number (315343959874).

Almost surely, 2^630687919747 is an apocalyptic number.

630687919747 is a deficient number, since it is larger than the sum of its proper divisors (1).

630687919747 is an equidigital number, since it uses as much as digits as its factorization.

630687919747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96018048, while the sum is 67.

The spelling of 630687919747 in words is "six hundred thirty billion, six hundred eighty-seven million, nine hundred nineteen thousand, seven hundred forty-seven".