809999999913331 has 8 divisors (see below), whose sum is σ = 810475688355840. Its totient is φ = 809524321036992.

The previous prime is 809999999913323. The next prime is 809999999913337. The reversal of 809999999913331 is 133319999999908.

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 809999999913331 - 2³ = 809999999913323 is a prime.

It is a super-2 number, since 2×809999999913331² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (809999999913337) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 170680231 + ... + 175361743.

It is an arithmetic number, because the mean of its divisors is an integer number (101309461044480).

Almost surely, 2^{809999999913331} is an apocalyptic number.

809999999913331 is a deficient number, since it is larger than the sum of its proper divisors (475688442509).

809999999913331 is a wasteful number, since it uses less digits than its factorization.

809999999913331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4783085.

The product of its (nonzero) digits is 9298091736, while the sum is 91.

The spelling of 809999999913331 in words is "eight hundred nine trillion, nine hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred thirteen thousand, three hundred thirty-one".