6811379994 has 8 divisors (see below), whose sum is σ = 13622760000. Its totient is φ = 2270459996.

The previous prime is 6811379983. The next prime is 6811380019. The reversal of 6811379994 is 4999731186.

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

6811379994 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 567614994 + ... + 567615005.

It is an arithmetic number, because the mean of its divisors is an integer number (1702845000).

Almost surely, 2^6811379994 is an apocalyptic number.

6811379994 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.

6811379994 is a wasteful number, since it uses less digits than its factorization.

6811379994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135230004.

The product of its digits is 2939328, while the sum is 57.

The square root of 6811379994 is about 82531.0850164955. The cubic root of 6811379994 is about 1895.5927389744.

The spelling of 6811379994 in words is "six billion, eight hundred eleven million, three hundred seventy-nine thousand, nine hundred ninety-four".