8522606832721 has 2 divisors, whose sum is σ = 8522606832722. Its totient is φ = 8522606832720.

The previous prime is 8522606832689. The next prime is 8522606832799. The reversal of 8522606832721 is 1272386062258.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6222834582721 + 2299772250000 = 2494561^2 + 1516500^2 .

It is a cyclic number.

It is not a de Polignac number, because 8522606832721 - 2⁵ = 8522606832689 is a prime.

It is not a weakly prime, because it can be changed into another prime (8522606832121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4261303416360 + 4261303416361.

It is an arithmetic number, because the mean of its divisors is an integer number (4261303416361).

Almost surely, 2^{8522606832721} is an apocalyptic number.

It is an amenable number.

8522606832721 is a deficient number, since it is larger than the sum of its proper divisors (1).

8522606832721 is an equidigital number, since it uses as much as digits as its factorization.

8522606832721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3870720, while the sum is 52.

The spelling of 8522606832721 in words is "eight trillion, five hundred twenty-two billion, six hundred six million, eight hundred thirty-two thousand, seven hundred twenty-one".