6818788807952 has 30 divisors (see below), whose sum is σ = 14521625135934. Its totient is φ = 3099449457280.

The previous prime is 6818788807903. The next prime is 6818788807967. The reversal of 6818788807952 is 2597088878186.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6587250766096 + 231538041856 = 2566564^2 + 481184^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1761048893 + ... + 1761052764.

Almost surely, 2^{6818788807952} is an apocalyptic number.

It is an amenable number.

6818788807952 is an abundant number, since it is smaller than the sum of its proper divisors (7702836327982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6818788807952 is a wasteful number, since it uses less digits than its factorization.

6818788807952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3522101687 (or 3522101670 counting only the distinct ones).

The product of its (nonzero) digits is 867041280, while the sum is 77.

The spelling of 6818788807952 in words is "six trillion, eight hundred eighteen billion, seven hundred eighty-eight million, eight hundred seven thousand, nine hundred fifty-two".