6726543667 has 4 divisors (see below), whose sum is σ = 6795889576. Its totient is φ = 6657197760.

The previous prime is 6726543631. The next prime is 6726543671. The reversal of 6726543667 is 7663456276.

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 6726543667 - 2⁷ = 6726543539 is a prime.

It is a super-3 number, since 3×6726543667³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6726543167) 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, 34672809 + ... + 34673002.

It is an arithmetic number, because the mean of its divisors is an integer number (1698972394).

Almost surely, 2^6726543667 is an apocalyptic number.

6726543667 is a deficient number, since it is larger than the sum of its proper divisors (69345909).

6726543667 is an equidigital number, since it uses as much as digits as its factorization.

6726543667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69345908.

The product of its digits is 7620480, while the sum is 52.

The square root of 6726543667 is about 82015.5086980505. The cubic root of 6726543667 is about 1887.6899136249.

The spelling of 6726543667 in words is "six billion, seven hundred twenty-six million, five hundred forty-three thousand, six hundred sixty-seven".