6811648169 has 8 divisors (see below), whose sum is σ = 6885503520. Its totient is φ = 6737867136.

The previous prime is 6811648097. The next prime is 6811648171. The reversal of 6811648169 is 9618461186.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6811648169 is a prime.

It is a super-2 number, since 2×6811648169² = 92797101556482105122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6811648369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176762 + ... + 211820.

It is an arithmetic number, because the mean of its divisors is an integer number (860687940).

Almost surely, 2^6811648169 is an apocalyptic number.

It is an amenable number.

6811648169 is a deficient number, since it is larger than the sum of its proper divisors (73855351).

6811648169 is a wasteful number, since it uses less digits than its factorization.

6811648169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37159.

The product of its digits is 497664, while the sum is 50.

The square root of 6811648169 is about 82532.7096913702. The cubic root of 6811648169 is about 1895.6176161609.

The spelling of 6811648169 in words is "six billion, eight hundred eleven million, six hundred forty-eight thousand, one hundred sixty-nine".