800861786268 has 24 divisors (see below), whose sum is σ = 1868694513168. Its totient is φ = 266951498496.

The previous prime is 800861786267. The next prime is 800861786281. The reversal of 800861786268 is 862687168008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800861786267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1495630 + ... + 1959242.

It is an arithmetic number, because the mean of its divisors is an integer number (77862271382).

Almost surely, 2^800861786268 is an apocalyptic number.

It is an amenable number.

800861786268 is an abundant number, since it is smaller than the sum of its proper divisors (1067832726900).

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

800861786268 is a wasteful number, since it uses less digits than its factorization.

800861786268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607573 (or 607571 counting only the distinct ones).

The product of its (nonzero) digits is 12386304, while the sum is 60.

The spelling of 800861786268 in words is "eight hundred billion, eight hundred sixty-one million, seven hundred eighty-six thousand, two hundred sixty-eight".