6688864503 has 12 divisors (see below), whose sum is σ = 9712280448. Its totient is φ = 4435895040.

The previous prime is 6688864499. The next prime is 6688864541. The reversal of 6688864503 is 3054688866.

It is not a de Polignac number, because 6688864503 - 2² = 6688864499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6688864503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6688864583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1943850 + ... + 1947287.

It is an arithmetic number, because the mean of its divisors is an integer number (809356704).

Almost surely, 2^6688864503 is an apocalyptic number.

6688864503 is a deficient number, since it is larger than the sum of its proper divisors (3023415945).

6688864503 is a wasteful number, since it uses less digits than its factorization.

6688864503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3891334 (or 3891331 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 54.

The square root of 6688864503 is about 81785.4785582380. The cubic root of 6688864503 is about 1884.1586399676.

The spelling of 6688864503 in words is "six billion, six hundred eighty-eight million, eight hundred sixty-four thousand, five hundred three".