808769831205 has 32 divisors (see below), whose sum is σ = 1479332763648. Its totient is φ = 369613512000.

The previous prime is 808769831189. The next prime is 808769831209. The reversal of 808769831205 is 502138967808.

It is a happy number.

It is not a de Polignac number, because 808769831205 - 2⁴ = 808769831189 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808769831209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 788521 + ... + 1496430.

It is an arithmetic number, because the mean of its divisors is an integer number (46229148864).

Almost surely, 2^808769831205 is an apocalyptic number.

It is an amenable number.

808769831205 is a deficient number, since it is larger than the sum of its proper divisors (670562932443).

808769831205 is a wasteful number, since it uses less digits than its factorization.

808769831205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2288337.

The product of its (nonzero) digits is 5806080, while the sum is 57.

The spelling of 808769831205 in words is "eight hundred eight billion, seven hundred sixty-nine million, eight hundred thirty-one thousand, two hundred five".