822073609261 has 8 divisors (see below), whose sum is σ = 873401639544. Its totient is φ = 771075663360.

The previous prime is 822073609223. The next prime is 822073609267. The reversal of 822073609261 is 162906370228.

It can be written as a sum of positive squares in 4 ways, for example, as 657323670025 + 164749939236 = 810755^2 + 405894^2 .

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 822073609261 - 2⁹ = 822073608749 is a prime.

It is a super-2 number, since 2×822073609261² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (822073609267) 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, 82515960 + ... + 82525921.

It is an arithmetic number, because the mean of its divisors is an integer number (109175204943).

Almost surely, 2^822073609261 is an apocalyptic number.

It is an amenable number.

822073609261 is a deficient number, since it is larger than the sum of its proper divisors (51328030283).

822073609261 is a wasteful number, since it uses less digits than its factorization.

822073609261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165042191.

The product of its (nonzero) digits is 435456, while the sum is 46.

Adding to 822073609261 its reverse (162906370228), we get a palindrome (984979979489).

The spelling of 822073609261 in words is "eight hundred twenty-two billion, seventy-three million, six hundred nine thousand, two hundred sixty-one".