82029589661 has 2 divisors, whose sum is σ = 82029589662. Its totient is φ = 82029589660.

The previous prime is 82029589597. The next prime is 82029589667. The reversal of 82029589661 is 16698592028.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46567050436 + 35462539225 = 215794^2 + 188315^2 .

It is a cyclic number.

It is not a de Polignac number, because 82029589661 - 2⁶ = 82029589597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82029589597 and 82029589606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82029589667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41014794830 + 41014794831.

It is an arithmetic number, because the mean of its divisors is an integer number (41014794831).

Almost surely, 2^82029589661 is an apocalyptic number.

It is an amenable number.

82029589661 is a deficient number, since it is larger than the sum of its proper divisors (1).

82029589661 is an equidigital number, since it uses as much as digits as its factorization.

82029589661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3732480, while the sum is 56.

The spelling of 82029589661 in words is "eighty-two billion, twenty-nine million, five hundred eighty-nine thousand, six hundred sixty-one".