6675217509 has 4 divisors (see below), whose sum is σ = 8900290016. Its totient is φ = 4450145004.

The previous prime is 6675217499. The next prime is 6675217517. The reversal of 6675217509 is 9057125766.

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 not a de Polignac number, because 6675217509 - 2¹⁷ = 6675086437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6675217519) 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, 1112536249 + ... + 1112536254.

It is an arithmetic number, because the mean of its divisors is an integer number (2225072504).

Almost surely, 2^6675217509 is an apocalyptic number.

It is an amenable number.

6675217509 is a deficient number, since it is larger than the sum of its proper divisors (2225072507).

6675217509 is a wasteful number, since it uses less digits than its factorization.

6675217509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225072506.

The product of its (nonzero) digits is 793800, while the sum is 48.

The square root of 6675217509 is about 81702.0043144598. The cubic root of 6675217509 is about 1882.8763790501.

The spelling of 6675217509 in words is "six billion, six hundred seventy-five million, two hundred seventeen thousand, five hundred nine".