805024880321 has 4 divisors (see below), whose sum is σ = 822153069312. Its totient is φ = 787896691332.

The previous prime is 805024880267. The next prime is 805024880353. The reversal of 805024880321 is 123088420508.

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 805024880321 - 2¹⁰ = 805024879297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (805024880221) 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 3 ways as a sum of consecutive naturals, for example, 8564094425 + ... + 8564094518.

It is an arithmetic number, because the mean of its divisors is an integer number (205538267328).

Almost surely, 2^805024880321 is an apocalyptic number.

It is an amenable number.

805024880321 is a deficient number, since it is larger than the sum of its proper divisors (17128188991).

805024880321 is a wasteful number, since it uses less digits than its factorization.

805024880321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17128188990.

The product of its (nonzero) digits is 122880, while the sum is 41.

The spelling of 805024880321 in words is "eight hundred five billion, twenty-four million, eight hundred eighty thousand, three hundred twenty-one".