6681982836 has 24 divisors (see below), whose sum is σ = 15603313824. Its totient is φ = 2225610400.

The previous prime is 6681982777. The next prime is 6681982859. The reversal of 6681982836 is 6382891866.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 198390 + ... + 229613.

It is an arithmetic number, because the mean of its divisors is an integer number (650138076).

Almost surely, 2^6681982836 is an apocalyptic number.

It is an amenable number.

6681982836 is an abundant number, since it is smaller than the sum of its proper divisors (8921330988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6681982836 is a wasteful number, since it uses less digits than its factorization.

6681982836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429311 (or 429309 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 57.

The square root of 6681982836 is about 81743.3962837366. The cubic root of 6681982836 is about 1883.5122621205.

The spelling of 6681982836 in words is "six billion, six hundred eighty-one million, nine hundred eighty-two thousand, eight hundred thirty-six".