8025081805909 has 8 divisors (see below), whose sum is σ = 9171804498560. Its totient is φ = 6878429721936.

The previous prime is 8025081805907. The next prime is 8025081805919. The reversal of 8025081805909 is 9095081805208.

It is a happy number.

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 8025081805909 - 2¹ = 8025081805907 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8025081805909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8025081805907) 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 7 ways as a sum of consecutive naturals, for example, 17408394 + ... + 17863435.

It is an arithmetic number, because the mean of its divisors is an integer number (1146475562320).

Almost surely, 2^{8025081805909} is an apocalyptic number.

It is an amenable number.

8025081805909 is a deficient number, since it is larger than the sum of its proper divisors (1146722692651).

8025081805909 is a wasteful number, since it uses less digits than its factorization.

8025081805909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35304339.

The product of its (nonzero) digits is 2073600, while the sum is 55.

The spelling of 8025081805909 in words is "eight trillion, twenty-five billion, eighty-one million, eight hundred five thousand, nine hundred nine".