6680406782 has 16 divisors (see below), whose sum is σ = 11453311872. Its totient is φ = 2862735000.

The previous prime is 6680406773. The next prime is 6680406797. The reversal of 6680406782 is 2876040866.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166157 + ... + 202407.

It is an arithmetic number, because the mean of its divisors is an integer number (715831992).

Almost surely, 2^6680406782 is an apocalyptic number.

6680406782 is a deficient number, since it is larger than the sum of its proper divisors (4772905090).

6680406782 is a wasteful number, since it uses less digits than its factorization.

6680406782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49423.

The product of its (nonzero) digits is 774144, while the sum is 47.

The square root of 6680406782 is about 81733.7554624771. The cubic root of 6680406782 is about 1883.3641648402.

The spelling of 6680406782 in words is "six billion, six hundred eighty million, four hundred six thousand, seven hundred eighty-two".