6816141138 has 8 divisors (see below), whose sum is σ = 13632282288. Its totient is φ = 2272047044.

The previous prime is 6816141127. The next prime is 6816141197. The reversal of 6816141138 is 8311416186.

It is a sphenic number, since it is the product of 3 distinct primes.

6816141138 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6816141096 and 6816141105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 568011756 + ... + 568011767.

It is an arithmetic number, because the mean of its divisors is an integer number (1704035286).

Almost surely, 2^6816141138 is an apocalyptic number.

6816141138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6816141138 is a wasteful number, since it uses less digits than its factorization.

6816141138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136023528.

The product of its digits is 27648, while the sum is 39.

The square root of 6816141138 is about 82559.9245275818. The cubic root of 6816141138 is about 1896.0343082284.

The spelling of 6816141138 in words is "six billion, eight hundred sixteen million, one hundred forty-one thousand, one hundred thirty-eight".