797922329655361 has 9 divisors (see below), whose sum is σ = 834123643818339. Its totient is φ = 763229433007536.

The previous prime is 797922329655313. The next prime is 797922329655427. The reversal of 797922329655361 is 163556923229797.

The square root of 797922329655361 is 28247519.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 790910722228225 + 7011607427136 = 28123135^2 + 2647944^2 .

It is not a de Polignac number, because 797922329655361 - 2¹³ = 797922329647169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (797922329655161) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 649078861 + ... + 650307013.

Almost surely, 2^{797922329655361} is an apocalyptic number.

797922329655361 is the 28247519-th square number.

797922329655361 is the 14123760-th centered octagonal number.

It is an amenable number.

797922329655361 is a deficient number, since it is larger than the sum of its proper divisors (36201314162978).

797922329655361 is an frugal number, since it uses more digits than its factorization.

797922329655361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2456352 (or 1228176 counting only the distinct ones).

The product of its digits is 2314720800, while the sum is 76.

The spelling of 797922329655361 in words is "seven hundred ninety-seven trillion, nine hundred twenty-two billion, three hundred twenty-nine million, six hundred fifty-five thousand, three hundred sixty-one".