800646846481 has 8 divisors (see below), whose sum is σ = 801460755144. Its totient is φ = 799833093120.

The previous prime is 800646846473. The next prime is 800646846539. The reversal of 800646846481 is 184648646008.

It can be written as a sum of positive squares in 4 ways, for example, as 44686154881 + 755960691600 = 211391^2 + 869460^2 .

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 800646846481 - 2³ = 800646846473 is a prime.

It is a super-2 number, since 2×800646846481² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (800646846451) 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 7 ways as a sum of consecutive naturals, for example, 12210921 + ... + 12276313.

It is an arithmetic number, because the mean of its divisors is an integer number (100182594393).

Almost surely, 2^800646846481 is an apocalyptic number.

It is an amenable number.

800646846481 is a deficient number, since it is larger than the sum of its proper divisors (813908663).

800646846481 is a wasteful number, since it uses less digits than its factorization.

800646846481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77651.

The product of its (nonzero) digits is 7077888, while the sum is 55.

The spelling of 800646846481 in words is "eight hundred billion, six hundred forty-six million, eight hundred forty-six thousand, four hundred eighty-one".