7287305066 has 8 divisors (see below), whose sum is σ = 11137202244. Its totient is φ = 3574904320.

The previous prime is 7287305063. The next prime is 7287305071. The reversal of 7287305066 is 6605037827.

It can be written as a sum of positive squares in 2 ways, for example, as 6925734841 + 361570225 = 83221^2 + 19015^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7287305063) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 34373975 + ... + 34374186.

Almost surely, 2^7287305066 is an apocalyptic number.

7287305066 is a deficient number, since it is larger than the sum of its proper divisors (3849897178).

7287305066 is a wasteful number, since it uses less digits than its factorization.

7287305066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68748216.

The product of its (nonzero) digits is 423360, while the sum is 44.

The square root of 7287305066 is about 85365.7136442963. The cubic root of 7287305066 is about 1938.7522590988.

The spelling of 7287305066 in words is "seven billion, two hundred eighty-seven million, three hundred five thousand, sixty-six".