6818878057 has 8 divisors (see below), whose sum is σ = 7118810496. Its totient is φ = 6519233952.

The previous prime is 6818878051. The next prime is 6818878063. The reversal of 6818878057 is 7508788186.

It is an interprime number because it is at equal distance from previous prime (6818878051) and next prime (6818878063).

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

It is a cyclic number.

It is not a de Polignac number, because 6818878057 - 2³ = 6818878049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6818877992 and 6818878010.

It is not an unprimeable number, because it can be changed into a prime (6818878051) 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 7 ways as a sum of consecutive naturals, for example, 23028 + ... + 119029.

It is an arithmetic number, because the mean of its divisors is an integer number (889851312).

Almost surely, 2^6818878057 is an apocalyptic number.

It is an amenable number.

6818878057 is a deficient number, since it is larger than the sum of its proper divisors (299932439).

6818878057 is a wasteful number, since it uses less digits than its factorization.

6818878057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144167.

The product of its (nonzero) digits is 6021120, while the sum is 58.

The square root of 6818878057 is about 82576.4982122638. The cubic root of 6818878057 is about 1896.2880489600.

The spelling of 6818878057 in words is "six billion, eight hundred eighteen million, eight hundred seventy-eight thousand, fifty-seven".