805423721448873 has 8 divisors (see below), whose sum is σ = 1084530951654336. Its totient is φ = 531632819438000.

The previous prime is 805423721448833. The next prime is 805423721448881. The reversal of 805423721448873 is 378844127324508.

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 805423721448873 - 2¹⁷ = 805423721317801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (805423721448833) 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, 1329082048293 + ... + 1329082048898.

It is an arithmetic number, because the mean of its divisors is an integer number (135566368956792).

Almost surely, 2^{805423721448873} is an apocalyptic number.

It is an amenable number.

805423721448873 is a deficient number, since it is larger than the sum of its proper divisors (279107230205463).

805423721448873 is a wasteful number, since it uses less digits than its factorization.

805423721448873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2658164097295.

The product of its (nonzero) digits is 289013760, while the sum is 66.

The spelling of 805423721448873 in words is "eight hundred five trillion, four hundred twenty-three billion, seven hundred twenty-one million, four hundred forty-eight thousand, eight hundred seventy-three".