6688675348 has 6 divisors (see below), whose sum is σ = 11705181866. Its totient is φ = 3344337672.

The previous prime is 6688675303. The next prime is 6688675349. The reversal of 6688675348 is 8435768866.

It can be written as a sum of positive squares in only one way, i.e., 4545726084 + 2142949264 = 67422^2 + 46292^2 .

It is a super-2 number, since 2×6688675348² = 89476755821885842208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6688675349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836084415 + ... + 836084422.

Almost surely, 2^6688675348 is an apocalyptic number.

It is an amenable number.

6688675348 is a deficient number, since it is larger than the sum of its proper divisors (5016506518).

6688675348 is a wasteful number, since it uses less digits than its factorization.

6688675348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1672168841 (or 1672168839 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 61.

The square root of 6688675348 is about 81784.3221406157. The cubic root of 6688675348 is about 1884.1408790363.

The spelling of 6688675348 in words is "six billion, six hundred eighty-eight million, six hundred seventy-five thousand, three hundred forty-eight".