6878656159 has 2 divisors, whose sum is σ = 6878656160. Its totient is φ = 6878656158.

The previous prime is 6878656117. The next prime is 6878656171. The reversal of 6878656159 is 9516568786.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6878656159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6878656097 and 6878656106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6878656259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3439328079 + 3439328080.

It is an arithmetic number, because the mean of its divisors is an integer number (3439328080).

Almost surely, 2^6878656159 is an apocalyptic number.

6878656159 is a deficient number, since it is larger than the sum of its proper divisors (1).

6878656159 is an equidigital number, since it uses as much as digits as its factorization.

6878656159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21772800, while the sum is 61.

The square root of 6878656159 is about 82937.6642967476. The cubic root of 6878656159 is about 1901.8132421339.

The spelling of 6878656159 in words is "six billion, eight hundred seventy-eight million, six hundred fifty-six thousand, one hundred fifty-nine".