6689650472 has 16 divisors (see below), whose sum is σ = 12546187200. Its totient is φ = 3344000560.

The previous prime is 6689650469. The next prime is 6689650477. The reversal of 6689650472 is 2740569866.

It is not an unprimeable number, because it can be changed into a prime (6689650477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67904 + ... + 134127.

It is an arithmetic number, because the mean of its divisors is an integer number (784136700).

Almost surely, 2^6689650472 is an apocalyptic number.

It is an amenable number.

6689650472 is a deficient number, since it is larger than the sum of its proper divisors (5856536728).

6689650472 is a wasteful number, since it uses less digits than its factorization.

6689650472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206176 (or 206172 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 53.

The square root of 6689650472 is about 81790.2834815970. The cubic root of 6689650472 is about 1884.2324358653.

The spelling of 6689650472 in words is "six billion, six hundred eighty-nine million, six hundred fifty thousand, four hundred seventy-two".