6684531049 has 12 divisors (see below), whose sum is σ = 7788728064. Its totient is φ = 5720133384.

The previous prime is 6684531047. The next prime is 6684531079. The reversal of 6684531049 is 9401354866.

It is not a de Polignac number, because 6684531049 - 2¹ = 6684531047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6684531041) 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 11 ways as a sum of consecutive naturals, for example, 82629 + ... + 142114.

It is an arithmetic number, because the mean of its divisors is an integer number (649060672).

Almost surely, 2^6684531049 is an apocalyptic number.

It is an amenable number.

6684531049 is a deficient number, since it is larger than the sum of its proper divisors (1104197015).

6684531049 is a wasteful number, since it uses less digits than its factorization.

6684531049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225364 (or 225357 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 46.

The square root of 6684531049 is about 81758.9814576967. The cubic root of 6684531049 is about 1883.7516611413.

The spelling of 6684531049 in words is "six billion, six hundred eighty-four million, five hundred thirty-one thousand, forty-nine".