6818955842 has 8 divisors (see below), whose sum is σ = 10368549516. Its totient is φ = 3362772672.

The previous prime is 6818955727. The next prime is 6818955851. The reversal of 6818955842 is 2485598186.

It can be written as a sum of positive squares in 2 ways, for example, as 6177802801 + 641153041 = 78599^2 + 25321^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23352443 + ... + 23352734.

Almost surely, 2^6818955842 is an apocalyptic number.

6818955842 is a deficient number, since it is larger than the sum of its proper divisors (3549593674).

6818955842 is a wasteful number, since it uses less digits than its factorization.

6818955842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46705252.

The product of its digits is 5529600, while the sum is 56.

The square root of 6818955842 is about 82576.9691984393. The cubic root of 6818955842 is about 1896.2952594426.

The spelling of 6818955842 in words is "six billion, eight hundred eighteen million, nine hundred fifty-five thousand, eight hundred forty-two".