6699999782 has 32 divisors (see below), whose sum is σ = 11711304000. Its totient is φ = 2815332480.

The previous prime is 6699999781. The next prime is 6699999793. The reversal of 6699999782 is 2879999966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6699999781) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 258344 + ... + 283092.

It is an arithmetic number, because the mean of its divisors is an integer number (365978250).

Almost surely, 2^6699999782 is an apocalyptic number.

6699999782 is a deficient number, since it is larger than the sum of its proper divisors (5011304218).

6699999782 is a wasteful number, since it uses less digits than its factorization.

6699999782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25136.

The product of its digits is 238085568, while the sum is 74.

The square root of 6699999782 is about 81853.5263870775. The cubic root of 6699999782 is about 1885.2036105745.

The spelling of 6699999782 in words is "six billion, six hundred ninety-nine million, nine hundred ninety-nine thousand, seven hundred eighty-two".