805531835472 has 320 divisors, whose sum is σ = 2752327839744. Its totient is φ = 196965457920.

The previous prime is 805531835443. The next prime is 805531835473. The reversal of 805531835472 is 274538135508.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805531835473) 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, 4894197 + ... + 5056107.

Almost surely, 2^805531835472 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 805531835472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1376163919872).

805531835472 is an abundant number, since it is smaller than the sum of its proper divisors (1946796004272).

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

805531835472 is a wasteful number, since it uses less digits than its factorization.

805531835472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162026 (or 162020 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 51.

The spelling of 805531835472 in words is "eight hundred five billion, five hundred thirty-one million, eight hundred thirty-five thousand, four hundred seventy-two".