6728324669 has 24 divisors (see below), whose sum is σ = 7811015520. Its totient is φ = 5775248160.

The previous prime is 6728324569. The next prime is 6728324671. The reversal of 6728324669 is 9664238276.

It is not a de Polignac number, because 6728324669 - 2²⁰ = 6727276093 is a prime.

It is a super-2 number, since 2×6728324669² = 90540705702947919122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6728324669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6728324689) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 701027 + ... + 710559.

It is an arithmetic number, because the mean of its divisors is an integer number (325458980).

Almost surely, 2^6728324669 is an apocalyptic number.

It is an amenable number.

6728324669 is a deficient number, since it is larger than the sum of its proper divisors (1082690851).

6728324669 is a wasteful number, since it uses less digits than its factorization.

6728324669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9881 (or 9870 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 53.

The square root of 6728324669 is about 82026.3656942083. The cubic root of 6728324669 is about 1887.8565015489.

The spelling of 6728324669 in words is "six billion, seven hundred twenty-eight million, three hundred twenty-four thousand, six hundred sixty-nine".