6691485404 has 24 divisors (see below), whose sum is σ = 12640592160. Its totient is φ = 3089920064.

The previous prime is 6691485397. The next prime is 6691485421. The reversal of 6691485404 is 4045841966.

It is a happy number.

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, 1251359 + ... + 1256694.

It is an arithmetic number, because the mean of its divisors is an integer number (526691340).

Almost surely, 2^6691485404 is an apocalyptic number.

It is an amenable number.

6691485404 is a deficient number, since it is larger than the sum of its proper divisors (5949106756).

6691485404 is a wasteful number, since it uses less digits than its factorization.

6691485404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2508109 (or 2508107 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The square root of 6691485404 is about 81801.5000106966. The cubic root of 6691485404 is about 1884.4046980952.

The spelling of 6691485404 in words is "six billion, six hundred ninety-one million, four hundred eighty-five thousand, four hundred four".