6841164649 has 4 divisors (see below), whose sum is σ = 7463088720. Its totient is φ = 6219240580.

The previous prime is 6841164647. The next prime is 6841164677. The reversal of 6841164649 is 9464611486.

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 6841164649 - 2¹ = 6841164647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6841164647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310962019 + ... + 310962040.

It is an arithmetic number, because the mean of its divisors is an integer number (1865772180).

Almost surely, 2^6841164649 is an apocalyptic number.

It is an amenable number.

6841164649 is a deficient number, since it is larger than the sum of its proper divisors (621924071).

6841164649 is a wasteful number, since it uses less digits than its factorization.

6841164649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621924070.

The product of its digits is 995328, while the sum is 49.

The square root of 6841164649 is about 82711.3332560901. Note that the first 3 decimals coincide. The cubic root of 6841164649 is about 1898.3517236966.

The spelling of 6841164649 in words is "six billion, eight hundred forty-one million, one hundred sixty-four thousand, six hundred forty-nine".