6843486649 has 4 divisors (see below), whose sum is σ = 6858141264. Its totient is φ = 6828832036.

The previous prime is 6843486599. The next prime is 6843486691. The reversal of 6843486649 is 9466843486.

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 6843486649 - 2⁹ = 6843486137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6843486593 and 6843486602.

It is not an unprimeable number, because it can be changed into a prime (6843486049) 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, 7326607 + ... + 7327540.

It is an arithmetic number, because the mean of its divisors is an integer number (1714535316).

Almost surely, 2^6843486649 is an apocalyptic number.

It is an amenable number.

6843486649 is a deficient number, since it is larger than the sum of its proper divisors (14654615).

6843486649 is a wasteful number, since it uses less digits than its factorization.

6843486649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14654614.

The product of its digits is 23887872, while the sum is 58.

The square root of 6843486649 is about 82725.3688356843. The cubic root of 6843486649 is about 1898.5664763160.

The spelling of 6843486649 in words is "six billion, eight hundred forty-three million, four hundred eighty-six thousand, six hundred forty-nine".