629505667389 has 16 divisors (see below), whose sum is σ = 889872972800. Its totient is φ = 394722215856.

The previous prime is 629505667387. The next prime is 629505667487. The reversal of 629505667389 is 983766505926.

It is a happy number.

It is not a de Polignac number, because 629505667389 - 2¹ = 629505667387 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629505667387) 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, 39718549 + ... + 39734394.

It is an arithmetic number, because the mean of its divisors is an integer number (55617060800).

Almost surely, 2^629505667389 is an apocalyptic number.

It is an amenable number.

629505667389 is a deficient number, since it is larger than the sum of its proper divisors (260367305411).

629505667389 is a wasteful number, since it uses less digits than its factorization.

629505667389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79453104.

The product of its (nonzero) digits is 146966400, while the sum is 66.

The spelling of 629505667389 in words is "six hundred twenty-nine billion, five hundred five million, six hundred sixty-seven thousand, three hundred eighty-nine".