805542245508 has 192 divisors, whose sum is σ = 2524273274880. Its totient is φ = 193089830400.

The previous prime is 805542245503. The next prime is 805542245549.

805542245508 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (805542245503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 96920673 + ... + 96928983.

It is an arithmetic number, because the mean of its divisors is an integer number (13147256640).

Almost surely, 2^805542245508 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 805542245508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1262136637440).

805542245508 is an abundant number, since it is smaller than the sum of its proper divisors (1718731029372).

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

805542245508 is a wasteful number, since it uses less digits than its factorization.

805542245508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16418 (or 16416 counting only the distinct ones).

The product of its (nonzero) digits is 2560000, while the sum is 48.

The spelling of 805542245508 in words is "eight hundred five billion, five hundred forty-two million, two hundred forty-five thousand, five hundred eight".