629704345989 has 16 divisors (see below), whose sum is σ = 917671610880. Its totient is φ = 382363169280.

The previous prime is 629704345987. The next prime is 629704346039. The reversal of 629704345989 is 989543407926.

It is not a de Polignac number, because 629704345989 - 2¹ = 629704345987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629704345987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199145904 + ... + 199149065.

It is an arithmetic number, because the mean of its divisors is an integer number (57354475680).

Almost surely, 2^629704345989 is an apocalyptic number.

It is an amenable number.

629704345989 is a deficient number, since it is larger than the sum of its proper divisors (287967264891).

629704345989 is a wasteful number, since it uses less digits than its factorization.

629704345989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398295020.

The product of its (nonzero) digits is 117573120, while the sum is 66.

The spelling of 629704345989 in words is "six hundred twenty-nine billion, seven hundred four million, three hundred forty-five thousand, nine hundred eighty-nine".