6815353803879 has 8 divisors (see below), whose sum is σ = 9236107887472. Its totient is φ = 4469084461440.

The previous prime is 6815353803851. The next prime is 6815353803887. The reversal of 6815353803879 is 9783083535186.

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

It is not a de Polignac number, because 6815353803879 - 2⁵ = 6815353803847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6815303803879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18621185074 + ... + 18621185439.

It is an arithmetic number, because the mean of its divisors is an integer number (1154513485934).

Almost surely, 2^{6815353803879} is an apocalyptic number.

6815353803879 is a deficient number, since it is larger than the sum of its proper divisors (2420754083593).

6815353803879 is a wasteful number, since it uses less digits than its factorization.

6815353803879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37242370577.

The product of its (nonzero) digits is 130636800, while the sum is 66.

The spelling of 6815353803879 in words is "six trillion, eight hundred fifteen billion, three hundred fifty-three million, eight hundred three thousand, eight hundred seventy-nine".