8081733285 has 20 divisors (see below), whose sum is σ = 14487255948. Its totient is φ = 4310257536.

The previous prime is 8081733229. The next prime is 8081733301. The reversal of 8081733285 is 5823371808.

It can be written as a sum of positive squares in 2 ways, for example, as 3091582404 + 4990150881 = 55602^2 + 70641^2 .

It is not a de Polignac number, because 8081733285 - 2⁶ = 8081733221 is a prime.

It is a super-3 number, since 3×8081733285³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 8081733285.

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 9977044 + ... + 9977853.

Almost surely, 2^8081733285 is an apocalyptic number.

It is an amenable number.

8081733285 is a deficient number, since it is larger than the sum of its proper divisors (6405522663).

8081733285 is a wasteful number, since it uses less digits than its factorization.

8081733285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19954914 (or 19954905 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 8081733285 is about 89898.4609712536. The cubic root of 8081733285 is about 2006.7880422598.

The spelling of 8081733285 in words is "eight billion, eighty-one million, seven hundred thirty-three thousand, two hundred eighty-five".