8273808765 has 12 divisors (see below), whose sum is σ = 14341268604. Its totient is φ = 4412697984.

The previous prime is 8273808757. The next prime is 8273808817. The reversal of 8273808765 is 5678083728.

It can be written as a sum of positive squares in 2 ways, for example, as 3285353124 + 4988455641 = 57318^2 + 70629^2 .

It is not a de Polignac number, because 8273808765 - 2³ = 8273808757 is a prime.

It is a super-2 number, since 2×8273808765² (a number of 21 digits) contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 91931164 + ... + 91931253.

It is an arithmetic number, because the mean of its divisors is an integer number (1195105717).

Almost surely, 2^8273808765 is an apocalyptic number.

It is an amenable number.

8273808765 is a deficient number, since it is larger than the sum of its proper divisors (6067459839).

8273808765 is a wasteful number, since it uses less digits than its factorization.

8273808765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183862428 (or 183862425 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The square root of 8273808765 is about 90960.4791379201. The cubic root of 8273808765 is about 2022.5619198917.

The spelling of 8273808765 in words is "eight billion, two hundred seventy-three million, eight hundred eight thousand, seven hundred sixty-five".