805768345452 has 144 divisors (see below), whose sum is σ = 2291278171392. Its totient is φ = 219331728000.

The previous prime is 805768345451. The next prime is 805768345471. The reversal of 805768345452 is 254543867508.

It is a junction number, because it is equal to n+sod(n) for n = 805768345392 and 805768345401.

It is not an unprimeable number, because it can be changed into a prime (805768345451) 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 47 ways as a sum of consecutive naturals, for example, 3275838 + ... + 3513210.

It is an arithmetic number, because the mean of its divisors is an integer number (15911653968).

Almost surely, 2^805768345452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 805768345452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1145639085696).

805768345452 is an abundant number, since it is smaller than the sum of its proper divisors (1485509825940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

805768345452 is a wasteful number, since it uses less digits than its factorization.

805768345452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237668 (or 237659 counting only the distinct ones).

The product of its (nonzero) digits is 32256000, while the sum is 57.

The spelling of 805768345452 in words is "eight hundred five billion, seven hundred sixty-eight million, three hundred forty-five thousand, four hundred fifty-two".