6699999748 has 24 divisors (see below), whose sum is σ = 12934900440. Its totient is φ = 3016884480.

The previous prime is 6699999673. The next prime is 6699999749. The reversal of 6699999748 is 8479999966.

It can be written as a sum of positive squares in 4 ways, for example, as 145154304 + 6554845444 = 12048^2 + 80962^2 .

It is not an unprimeable number, because it can be changed into a prime (6699999749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1569163 + ... + 1573426.

It is an arithmetic number, because the mean of its divisors is an integer number (538954185).

Almost surely, 2^6699999748 is an apocalyptic number.

It is an amenable number.

6699999748 is a deficient number, since it is larger than the sum of its proper divisors (6234900692).

6699999748 is a wasteful number, since it uses less digits than its factorization.

6699999748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3142647 (or 3142645 counting only the distinct ones).

The product of its digits is 476171136, while the sum is 76.

The square root of 6699999748 is about 81853.5261793895. The cubic root of 6699999748 is about 1885.2036073856.

The spelling of 6699999748 in words is "six billion, six hundred ninety-nine million, nine hundred ninety-nine thousand, seven hundred forty-eight".