9281798281793 has 8 divisors (see below), whose sum is σ = 9689950756200. Its totient is φ = 8879518505088.

The previous prime is 9281798281753. The next prime is 9281798281801. The reversal of 9281798281793 is 3971828971829.

It can be written as a sum of positive squares in 4 ways, for example, as 1808398284289 + 7473399997504 = 1344767^2 + 2733752^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 9281798281793 - 2⁶ = 9281798281729 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9281798281793.

It is not an unprimeable number, because it can be changed into a prime (9281798281733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1468171196 + ... + 1468177517.

It is an arithmetic number, because the mean of its divisors is an integer number (1211243844525).

Almost surely, 2^{9281798281793} is an apocalyptic number.

It is an amenable number.

9281798281793 is a deficient number, since it is larger than the sum of its proper divisors (408152474407).

9281798281793 is a wasteful number, since it uses less digits than its factorization.

9281798281793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2936348851.

The product of its digits is 219469824, while the sum is 74.

The spelling of 9281798281793 in words is "nine trillion, two hundred eighty-one billion, seven hundred ninety-eight million, two hundred eighty-one thousand, seven hundred ninety-three".