809148833312 has 36 divisors (see below), whose sum is σ = 1605654956430. Its totient is φ = 401388535296.

The previous prime is 809148833291. The next prime is 809148833321. The reversal of 809148833312 is 213338841908.

It can be written as a sum of positive squares in only one way, i.e., 414267300496 + 394881532816 = 643636^2 + 628396^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 267737 + ... + 1299992.

Almost surely, 2^809148833312 is an apocalyptic number.

It is an amenable number.

809148833312 is a deficient number, since it is larger than the sum of its proper divisors (796506123118).

809148833312 is a wasteful number, since it uses less digits than its factorization.

809148833312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1567993 (or 1567858 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 50.

The spelling of 809148833312 in words is "eight hundred nine billion, one hundred forty-eight million, eight hundred thirty-three thousand, three hundred twelve".