6598638922 has 8 divisors (see below), whose sum is σ = 10033547076. Its totient is φ = 3254123232.

The previous prime is 6598638919. The next prime is 6598638923. The reversal of 6598638922 is 2298368956.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6420656641 + 177982281 = 80129^2 + 13341^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (6598638923) 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 3 ways as a sum of consecutive naturals, for example, 22597933 + ... + 22598224.

Almost surely, 2^6598638922 is an apocalyptic number.

6598638922 is a deficient number, since it is larger than the sum of its proper divisors (3434908154).

6598638922 is a wasteful number, since it uses less digits than its factorization.

6598638922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45196232.

The product of its digits is 11197440, while the sum is 58.

The square root of 6598638922 is about 81232.0067584200. The cubic root of 6598638922 is about 1875.6485030967.

The spelling of 6598638922 in words is "six billion, five hundred ninety-eight million, six hundred thirty-eight thousand, nine hundred twenty-two".