6683888133 has 12 divisors (see below), whose sum is σ = 10397159500. Its totient is φ = 4113161856.

The previous prime is 6683888131. The next prime is 6683888149. The reversal of 6683888133 is 3318883866.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4225910049 + 2457978084 = 65007^2 + 49578^2 .

It is not a de Polignac number, because 6683888133 - 2¹ = 6683888131 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6683888133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6683888131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28563508 + ... + 28563741.

Almost surely, 2^6683888133 is an apocalyptic number.

It is an amenable number.

6683888133 is a deficient number, since it is larger than the sum of its proper divisors (3713271367).

6683888133 is a wasteful number, since it uses less digits than its factorization.

6683888133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57127268 (or 57127265 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 54.

The square root of 6683888133 is about 81755.0495871662. The cubic root of 6683888133 is about 1883.6912663331.

The spelling of 6683888133 in words is "six billion, six hundred eighty-three million, eight hundred eighty-eight thousand, one hundred thirty-three".