800857286443 has 8 divisors (see below), whose sum is σ = 843066821520. Its totient is φ = 758653666560.

The previous prime is 800857286419. The next prime is 800857286447. The reversal of 800857286443 is 344682758008.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 800857286443 - 2¹³ = 800857278251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (800857286447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1199530 + ... + 1743727.

It is an arithmetic number, because the mean of its divisors is an integer number (105383352690).

Almost surely, 2^800857286443 is an apocalyptic number.

800857286443 is a deficient number, since it is larger than the sum of its proper divisors (42209535077).

800857286443 is a wasteful number, since it uses less digits than its factorization.

800857286443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2957597.

The product of its (nonzero) digits is 10321920, while the sum is 55.

The spelling of 800857286443 in words is "eight hundred billion, eight hundred fifty-seven million, two hundred eighty-six thousand, four hundred forty-three".