806813968852 has 6 divisors (see below), whose sum is σ = 1411924445498. Its totient is φ = 403406984424.

The previous prime is 806813968819. The next prime is 806813968867. The reversal of 806813968852 is 258869318608.

It can be written as a sum of positive squares in only one way, i.e., 802321484176 + 4492484676 = 895724^2 + 67026^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 100851746103 + ... + 100851746110.

Almost surely, 2^806813968852 is an apocalyptic number.

It is an amenable number.

806813968852 is a deficient number, since it is larger than the sum of its proper divisors (605110476646).

806813968852 is a wasteful number, since it uses less digits than its factorization.

806813968852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201703492217 (or 201703492215 counting only the distinct ones).

The product of its (nonzero) digits is 39813120, while the sum is 64.

The spelling of 806813968852 in words is "eight hundred six billion, eight hundred thirteen million, nine hundred sixty-eight thousand, eight hundred fifty-two".