6818538950 has 12 divisors (see below), whose sum is σ = 12682482540. Its totient is φ = 2727415560.

The previous prime is 6818538931. The next prime is 6818538953. The reversal of 6818538950 is 598358186.

It is a junction number, because it is equal to n+sod(n) for n = 6818538892 and 6818538901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6818538953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68185340 + ... + 68185439.

It is an arithmetic number, because the mean of its divisors is an integer number (1056873545).

Almost surely, 2^6818538950 is an apocalyptic number.

6818538950 is a deficient number, since it is larger than the sum of its proper divisors (5863943590).

6818538950 is a wasteful number, since it uses less digits than its factorization.

6818538950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136370791 (or 136370786 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 53.

The square root of 6818538950 is about 82574.4448967112. Note that the first 3 decimals coincide. The cubic root of 6818538950 is about 1896.2566139152.

The spelling of 6818538950 in words is "six billion, eight hundred eighteen million, five hundred thirty-eight thousand, nine hundred fifty".