800817578086 has 16 divisors (see below), whose sum is σ = 1283142382704. Its totient is φ = 373520326144.

The previous prime is 800817578081. The next prime is 800817578089. The reversal of 800817578086 is 680875718008.

It is a self number, because there is not a number n which added to its sum of digits gives 800817578086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800817578081) 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, 104215000 + ... + 104222683.

It is an arithmetic number, because the mean of its divisors is an integer number (80196398919).

Almost surely, 2^800817578086 is an apocalyptic number.

800817578086 is a deficient number, since it is larger than the sum of its proper divisors (482324804618).

800817578086 is a wasteful number, since it uses less digits than its factorization.

800817578086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208437815.

The product of its (nonzero) digits is 6021120, while the sum is 58.

The spelling of 800817578086 in words is "eight hundred billion, eight hundred seventeen million, five hundred seventy-eight thousand, eighty-six".