6629809238 has 32 divisors (see below), whose sum is σ = 10865552544. Its totient is φ = 3015677952.

The previous prime is 6629809231. The next prime is 6629809279. The reversal of 6629809238 is 8329089266.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6629809238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6629809231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 542006 + ... + 554102.

It is an arithmetic number, because the mean of its divisors is an integer number (339548517).

Almost surely, 2^6629809238 is an apocalyptic number.

6629809238 is a deficient number, since it is larger than the sum of its proper divisors (4235743306).

6629809238 is a wasteful number, since it uses less digits than its factorization.

6629809238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12416.

The product of its (nonzero) digits is 2239488, while the sum is 53.

The square root of 6629809238 is about 81423.6405351664. The cubic root of 6629809238 is about 1878.5972293801.

The spelling of 6629809238 in words is "six billion, six hundred twenty-nine million, eight hundred nine thousand, two hundred thirty-eight".