7328281663 has 4 divisors (see below), whose sum is σ = 7328488248. Its totient is φ = 7328075080.

The previous prime is 7328281651. The next prime is 7328281669. The reversal of 7328281663 is 3661828237.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3661828237 = 17 ⋅215401661.

It is a cyclic number.

It is not a de Polignac number, because 7328281663 - 2⁹ = 7328281151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7328281669) 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, 35056 + ... + 126037.

It is an arithmetic number, because the mean of its divisors is an integer number (1832122062).

Almost surely, 2^7328281663 is an apocalyptic number.

7328281663 is a deficient number, since it is larger than the sum of its proper divisors (206585).

7328281663 is a wasteful number, since it uses less digits than its factorization.

7328281663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206584.

The product of its digits is 580608, while the sum is 46.

The square root of 7328281663 is about 85605.3833762807. The cubic root of 7328281663 is about 1942.3793443231.

The spelling of 7328281663 in words is "seven billion, three hundred twenty-eight million, two hundred eighty-one thousand, six hundred sixty-three".