6815667047979 has 8 divisors (see below), whose sum is σ = 9116589790672. Its totient is φ = 4529261168640.

The previous prime is 6815667047939. The next prime is 6815667047983. The reversal of 6815667047979 is 9797407665186.

6815667047979 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 6815667047979 - 2⁷ = 6815667047851 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6815667047979.

It is not an unprimeable number, because it can be changed into a prime (6815667047929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3629214742 + ... + 3629216619.

It is an arithmetic number, because the mean of its divisors is an integer number (1139573723834).

Almost surely, 2^{6815667047979} is an apocalyptic number.

6815667047979 is a deficient number, since it is larger than the sum of its proper divisors (2300922742693).

6815667047979 is a wasteful number, since it uses less digits than its factorization.

6815667047979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7258431677.

The product of its (nonzero) digits is 960180480, while the sum is 75.

The spelling of 6815667047979 in words is "six trillion, eight hundred fifteen billion, six hundred sixty-seven million, forty-seven thousand, nine hundred seventy-nine".