805150887089 has 4 divisors (see below), whose sum is σ = 805155832320. Its totient is φ = 805145941860.

The previous prime is 805150887059. The next prime is 805150887103. The reversal of 805150887089 is 980788051508.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 805150887089 - 2²⁰ = 805149838513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (805150887059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2219777 + ... + 2556894.

It is an arithmetic number, because the mean of its divisors is an integer number (201288958080).

Almost surely, 2^805150887089 is an apocalyptic number.

It is an amenable number.

805150887089 is a deficient number, since it is larger than the sum of its proper divisors (4945231).

805150887089 is a wasteful number, since it uses less digits than its factorization.

805150887089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4945230.

The product of its (nonzero) digits is 6451200, while the sum is 59.

The spelling of 805150887089 in words is "eight hundred five billion, one hundred fifty million, eight hundred eighty-seven thousand, eighty-nine".