8361273616 has 40 divisors (see below), whose sum is σ = 16649979224. Its totient is φ = 4064670720.

The previous prime is 8361273581. The next prime is 8361273617. The reversal of 8361273616 is 6163721638.

It can be written as a sum of positive squares in 4 ways, for example, as 6425625600 + 1935648016 = 80160^2 + 43996^2 .

It is not an unprimeable number, because it can be changed into a prime (8361273617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 955276 + ... + 963988.

Almost surely, 2^8361273616 is an apocalyptic number.

It is an amenable number.

8361273616 is a deficient number, since it is larger than the sum of its proper divisors (8288705608).

8361273616 is a wasteful number, since it uses less digits than its factorization.

8361273616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10379 (or 10373 counting only the distinct ones).

The product of its digits is 217728, while the sum is 43.

The square root of 8361273616 is about 91440.0000874891. Note that the first 4 decimals coincide. The cubic root of 8361273616 is about 2029.6639834691.

It can be divided in two parts, 83612736 and 16, that multiplied together give a square (1337803776 = 36576²).

The spelling of 8361273616 in words is "eight billion, three hundred sixty-one million, two hundred seventy-three thousand, six hundred sixteen".