6806438133 has 64 divisors (see below), whose sum is σ = 10351908864. Its totient is φ = 3942432000.

The previous prime is 6806438131. The next prime is 6806438203. The reversal of 6806438133 is 3318346086.

It is not a de Polignac number, because 6806438133 - 2¹ = 6806438131 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6806438131) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13976016 + ... + 13976502.

It is an arithmetic number, because the mean of its divisors is an integer number (161748576).

Almost surely, 2^6806438133 is an apocalyptic number.

It is an amenable number.

6806438133 is a deficient number, since it is larger than the sum of its proper divisors (3545470731).

6806438133 is a wasteful number, since it uses less digits than its factorization.

6806438133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746.

The product of its (nonzero) digits is 248832, while the sum is 42.

The square root of 6806438133 is about 82501.1401921210. The cubic root of 6806438133 is about 1895.1341915494.

The spelling of 6806438133 in words is "six billion, eight hundred six million, four hundred thirty-eight thousand, one hundred thirty-three".