6328722009 has 16 divisors (see below), whose sum is σ = 8525883392. Its totient is φ = 4175409168.

The previous prime is 6328722007. The next prime is 6328722011. The reversal of 6328722009 is 9002278236.

It is an interprime number because it is at equal distance from previous prime (6328722007) and next prime (6328722011).

It is not a de Polignac number, because 6328722009 - 2¹ = 6328722007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6328722007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 526464 + ... + 538350.

It is an arithmetic number, because the mean of its divisors is an integer number (532867712).

Almost surely, 2^6328722009 is an apocalyptic number.

It is an amenable number.

6328722009 is a deficient number, since it is larger than the sum of its proper divisors (2197161383).

6328722009 is a wasteful number, since it uses less digits than its factorization.

6328722009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13716.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 6328722009 is about 79553.2652315416. The cubic root of 6328722009 is about 1849.7172208641.

The spelling of 6328722009 in words is "six billion, three hundred twenty-eight million, seven hundred twenty-two thousand, nine".