808849542272 has 24 divisors (see below), whose sum is σ = 1611400218465. Its totient is φ = 404419683584.

The previous prime is 808849542271. The next prime is 808849542323. The reversal of 808849542272 is 272245948808.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 655542838336 + 153306703936 = 809656^2 + 391544^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=635944.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (808849542271) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 10135358 + ... + 10214850.

Almost surely, 2^808849542272 is an apocalyptic number.

It is an amenable number.

808849542272 is a deficient number, since it is larger than the sum of its proper divisors (802550676193).

808849542272 is an frugal number, since it uses more digits than its factorization.

808849542272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159000 (or 79495 counting only the distinct ones).

The product of its (nonzero) digits is 20643840, while the sum is 59.

The spelling of 808849542272 in words is "eight hundred eight billion, eight hundred forty-nine million, five hundred forty-two thousand, two hundred seventy-two".