6815815382 has 8 divisors (see below), whose sum is σ = 10363774296. Its totient is φ = 3361223952.

The previous prime is 6815815379. The next prime is 6815815417. The reversal of 6815815382 is 2835185186.

It is a happy number.

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

It is a congruent number.

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, 23341688 + ... + 23341979.

It is an arithmetic number, because the mean of its divisors is an integer number (1295471787).

Almost surely, 2^6815815382 is an apocalyptic number.

6815815382 is a deficient number, since it is larger than the sum of its proper divisors (3547958914).

6815815382 is a wasteful number, since it uses less digits than its factorization.

6815815382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46683742.

The product of its digits is 460800, while the sum is 47.

The square root of 6815815382 is about 82557.9516582140. The cubic root of 6815815382 is about 1896.0041027509.

The spelling of 6815815382 in words is "six billion, eight hundred fifteen million, eight hundred fifteen thousand, three hundred eighty-two".