6878049155 has 16 divisors (see below), whose sum is σ = 8281699200. Its totient is φ = 5483778048.

The previous prime is 6878049151. The next prime is 6878049163. The reversal of 6878049155 is 5519408786.

It is a cyclic number.

It is not a de Polignac number, because 6878049155 - 2² = 6878049151 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6878049097 and 6878049106.

It is not an unprimeable number, because it can be changed into a prime (6878049151) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3193559 + ... + 3195711.

It is an arithmetic number, because the mean of its divisors is an integer number (517606200).

Almost surely, 2^6878049155 is an apocalyptic number.

6878049155 is a deficient number, since it is larger than the sum of its proper divisors (1403650045).

6878049155 is a wasteful number, since it uses less digits than its factorization.

6878049155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4030.

The product of its (nonzero) digits is 2419200, while the sum is 53.

The square root of 6878049155 is about 82934.0048170833. The cubic root of 6878049155 is about 1901.7572989295.

The spelling of 6878049155 in words is "six billion, eight hundred seventy-eight million, forty-nine thousand, one hundred fifty-five".