6727668667 has 4 divisors (see below), whose sum is σ = 6808725000. Its totient is φ = 6646612336.

The previous prime is 6727668631. The next prime is 6727668709. The reversal of 6727668667 is 7668667276.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6727668667 - 2¹⁵ = 6727635899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6727668767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40528042 + ... + 40528207.

It is an arithmetic number, because the mean of its divisors is an integer number (1702181250).

Almost surely, 2^6727668667 is an apocalyptic number.

6727668667 is a deficient number, since it is larger than the sum of its proper divisors (81056333).

6727668667 is an equidigital number, since it uses as much as digits as its factorization.

6727668667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81056332.

The product of its digits is 42674688, while the sum is 61.

The square root of 6727668667 is about 82022.3668702629. The cubic root of 6727668667 is about 1887.7951451215.

The spelling of 6727668667 in words is "six billion, seven hundred twenty-seven million, six hundred sixty-eight thousand, six hundred sixty-seven".