6619863682 has 32 divisors (see below), whose sum is σ = 11075201280. Its totient is φ = 2949154560.

The previous prime is 6619863671. The next prime is 6619863683. The reversal of 6619863682 is 2863689166.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6619863683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1205928 + ... + 1211404.

It is an arithmetic number, because the mean of its divisors is an integer number (346100040).

Almost surely, 2^6619863682 is an apocalyptic number.

6619863682 is a deficient number, since it is larger than the sum of its proper divisors (4455337598).

6619863682 is a wasteful number, since it uses less digits than its factorization.

6619863682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7386.

The product of its digits is 4478976, while the sum is 55.

The square root of 6619863682 is about 81362.5447119250. The cubic root of 6619863682 is about 1877.6573811026.

The spelling of 6619863682 in words is "six billion, six hundred nineteen million, eight hundred sixty-three thousand, six hundred eighty-two".