629227046689 has 4 divisors (see below), whose sum is σ = 646233183124. Its totient is φ = 612220910256.

The previous prime is 629227046671. The next prime is 629227046729. The reversal of 629227046689 is 986640722926.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 355195736289 + 274031310400 = 595983^2 + 523480^2 .

It is not a de Polignac number, because 629227046689 - 2⁷ = 629227046561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (629227046629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8503068162 + ... + 8503068235.

It is an arithmetic number, because the mean of its divisors is an integer number (161558295781).

Almost surely, 2^629227046689 is an apocalyptic number.

It is an amenable number.

629227046689 is a deficient number, since it is larger than the sum of its proper divisors (17006136435).

629227046689 is a wasteful number, since it uses less digits than its factorization.

629227046689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17006136434.

The product of its (nonzero) digits is 31352832, while the sum is 61.

The spelling of 629227046689 in words is "six hundred twenty-nine billion, two hundred twenty-seven million, forty-six thousand, six hundred eighty-nine".