6699477009 has 4 divisors (see below), whose sum is σ = 8932636016. Its totient is φ = 4466318004.

The previous prime is 6699476999. The next prime is 6699477019. The reversal of 6699477009 is 9007749966.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (6699476999) and next prime (6699477019).

It is not a de Polignac number, because 6699477009 - 2⁷ = 6699476881 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6699477009.

It is not an unprimeable number, because it can be changed into a prime (6699477019) 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, 1116579499 + ... + 1116579504.

It is an arithmetic number, because the mean of its divisors is an integer number (2233159004).

Almost surely, 2^6699477009 is an apocalyptic number.

It is an amenable number.

6699477009 is a deficient number, since it is larger than the sum of its proper divisors (2233159007).

6699477009 is a wasteful number, since it uses less digits than its factorization.

6699477009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2233159006.

The product of its (nonzero) digits is 5143824, while the sum is 57.

The square root of 6699477009 is about 81850.3329803856. The cubic root of 6699477009 is about 1885.1545777778.

The spelling of 6699477009 in words is "six billion, six hundred ninety-nine million, four hundred seventy-seven thousand, nine".