6727628649 has 32 divisors (see below), whose sum is σ = 10685169664. Its totient is φ = 3684191040.

The previous prime is 6727628591. The next prime is 6727628651. The reversal of 6727628649 is 9468267276.

It is not a de Polignac number, because 6727628649 - 2⁹ = 6727628137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6727628749) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16887 + ... + 117219.

It is an arithmetic number, because the mean of its divisors is an integer number (333911552).

Almost surely, 2^6727628649 is an apocalyptic number.

It is an amenable number.

6727628649 is a deficient number, since it is larger than the sum of its proper divisors (3957541015).

6727628649 is a wasteful number, since it uses less digits than its factorization.

6727628649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100477.

The product of its digits is 12192768, while the sum is 57.

The square root of 6727628649 is about 82022.1229242453. The cubic root of 6727628649 is about 1887.7914020747.

The spelling of 6727628649 in words is "six billion, seven hundred twenty-seven million, six hundred twenty-eight thousand, six hundred forty-nine".