6689146682 has 4 divisors (see below), whose sum is σ = 10033720026. Its totient is φ = 3344573340.

The previous prime is 6689146619. The next prime is 6689146691. The reversal of 6689146682 is 2866419866.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2866419866 = 2 ⋅1433209933.

It can be written as a sum of positive squares in only one way, i.e., 6449856721 + 239289961 = 80311^2 + 15469^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1672286669 + ... + 1672286672.

Almost surely, 2^6689146682 is an apocalyptic number.

6689146682 is a deficient number, since it is larger than the sum of its proper divisors (3344573344).

6689146682 is a wasteful number, since it uses less digits than its factorization.

6689146682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3344573343.

The product of its digits is 5971968, while the sum is 56.

The square root of 6689146682 is about 81787.2036568069. The cubic root of 6689146682 is about 1884.1851348744.

The spelling of 6689146682 in words is "six billion, six hundred eighty-nine million, one hundred forty-six thousand, six hundred eighty-two".