6808615863717 has 4 divisors (see below), whose sum is σ = 9078154484960. Its totient is φ = 4539077242476.

The previous prime is 6808615863661. The next prime is 6808615863761. The reversal of 6808615863717 is 7173685168086.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6808615863717 - 2¹² = 6808615859621 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 (6808615843717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1134769310617 + ... + 1134769310622.

It is an arithmetic number, because the mean of its divisors is an integer number (2269538621240).

Almost surely, 2^{6808615863717} is an apocalyptic number.

It is an amenable number.

6808615863717 is a deficient number, since it is larger than the sum of its proper divisors (2269538621243).

6808615863717 is a wasteful number, since it uses less digits than its factorization.

6808615863717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2269538621242.

The product of its (nonzero) digits is 81285120, while the sum is 66.

The spelling of 6808615863717 in words is "six trillion, eight hundred eight billion, six hundred fifteen million, eight hundred sixty-three thousand, seven hundred seventeen".