630687919423 has 2 divisors, whose sum is σ = 630687919424. Its totient is φ = 630687919422.

The previous prime is 630687919417. The next prime is 630687919529. The reversal of 630687919423 is 324919786036.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 630687919423 - 2¹⁷ = 630687788351 is a prime.

It is a super-2 number, since 2×630687919423² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630687979423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315343959711 + 315343959712.

It is an arithmetic number, because the mean of its divisors is an integer number (315343959712).

Almost surely, 2^630687919423 is an apocalyptic number.

630687919423 is a deficient number, since it is larger than the sum of its proper divisors (1).

630687919423 is an equidigital number, since it uses as much as digits as its factorization.

630687919423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11757312, while the sum is 58.

The spelling of 630687919423 in words is "six hundred thirty billion, six hundred eighty-seven million, nine hundred nineteen thousand, four hundred twenty-three".