6729409697 has 4 divisors (see below), whose sum is σ = 6738467520. Its totient is φ = 6720351876.

The previous prime is 6729409681. The next prime is 6729409699. The reversal of 6729409697 is 7969049276.

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 a cyclic number.

It is not a de Polignac number, because 6729409697 - 2⁴ = 6729409681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6729409699) 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, 4527797 + ... + 4529282.

It is an arithmetic number, because the mean of its divisors is an integer number (1684616880).

Almost surely, 2^6729409697 is an apocalyptic number.

It is an amenable number.

6729409697 is a deficient number, since it is larger than the sum of its proper divisors (9057823).

6729409697 is an equidigital number, since it uses as much as digits as its factorization.

6729409697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9057822.

The product of its (nonzero) digits is 10287648, while the sum is 59.

The square root of 6729409697 is about 82032.9793253908. The cubic root of 6729409697 is about 1887.9579763917.

The spelling of 6729409697 in words is "six billion, seven hundred twenty-nine million, four hundred nine thousand, six hundred ninety-seven".