809838225673 has 8 divisors (see below), whose sum is σ = 816218208000. Its totient is φ = 803470841328.

The previous prime is 809838225667. The next prime is 809838225683. The reversal of 809838225673 is 376522838908.

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 a de Polignac number, because none of the positive numbers 2^k-809838225673 is a prime.

It is a super-2 number, since 2×809838225673² (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 (809838225683) 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 7 ways as a sum of consecutive naturals, for example, 3020403 + ... + 3277576.

It is an arithmetic number, because the mean of its divisors is an integer number (102027276000).

Almost surely, 2^809838225673 is an apocalyptic number.

It is an amenable number.

809838225673 is a deficient number, since it is larger than the sum of its proper divisors (6379982327).

809838225673 is a wasteful number, since it uses less digits than its factorization.

809838225673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6298991.

The product of its (nonzero) digits is 34836480, while the sum is 61.

The spelling of 809838225673 in words is "eight hundred nine billion, eight hundred thirty-eight million, two hundred twenty-five thousand, six hundred seventy-three".