6694028009 has 8 divisors (see below), whose sum is σ = 6774947520. Its totient is φ = 6613463376.

The previous prime is 6694027993. The next prime is 6694028021. The reversal of 6694028009 is 9008204966.

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

It is a cyclic number.

It is not a de Polignac number, because 6694028009 - 2⁴ = 6694027993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6694028609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50669 + ... + 126314.

It is an arithmetic number, because the mean of its divisors is an integer number (846868440).

Almost surely, 2^6694028009 is an apocalyptic number.

It is an amenable number.

6694028009 is a deficient number, since it is larger than the sum of its proper divisors (80919511).

6694028009 is a wasteful number, since it uses less digits than its factorization.

6694028009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177439.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 6694028009 is about 81817.0398450103. The cubic root of 6694028009 is about 1884.6433441648.

It can be divided in two parts, 66940 and 28009, that added together give a palindrome (94949).

The spelling of 6694028009 in words is "six billion, six hundred ninety-four million, twenty-eight thousand, nine".