813752786706 has 16 divisors (see below), whose sum is σ = 1632738714048. Its totient is φ = 270378738800.

The previous prime is 813752786657. The next prime is 813752786719. The reversal of 813752786706 is 607687257318.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 813752786706.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218045505 + ... + 218049236.

It is an arithmetic number, because the mean of its divisors is an integer number (102046169628).

Almost surely, 2^813752786706 is an apocalyptic number.

813752786706 is an abundant number, since it is smaller than the sum of its proper divisors (818985927342).

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

813752786706 is a wasteful number, since it uses less digits than its factorization.

813752786706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436095057.

The product of its (nonzero) digits is 23708160, while the sum is 60.

The spelling of 813752786706 in words is "eight hundred thirteen billion, seven hundred fifty-two million, seven hundred eighty-six thousand, seven hundred six".