6844507389 has 12 divisors (see below), whose sum is σ = 10406853600. Its totient is φ = 4322846664.

The previous prime is 6844507367. The next prime is 6844507421. The reversal of 6844507389 is 9837054486.

6844507389 is a `hidden beast` number, since 68 + 44 + 507 + 38 + 9 = 666.

It is not a de Polignac number, because 6844507389 - 2⁸ = 6844507133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6844507339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20013009 + ... + 20013350.

It is an arithmetic number, because the mean of its divisors is an integer number (867237800).

Almost surely, 2^6844507389 is an apocalyptic number.

It is an amenable number.

6844507389 is a deficient number, since it is larger than the sum of its proper divisors (3562346211).

6844507389 is a wasteful number, since it uses less digits than its factorization.

6844507389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40026384 (or 40026381 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The square root of 6844507389 is about 82731.5380553269. The cubic root of 6844507389 is about 1898.6608651610.

The spelling of 6844507389 in words is "six billion, eight hundred forty-four million, five hundred seven thousand, three hundred eighty-nine".