82569592470109 has 2 divisors, whose sum is σ = 82569592470110. Its totient is φ = 82569592470108.

The previous prime is 82569592470097. The next prime is 82569592470119. The reversal of 82569592470109 is 90107429596528.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79813318468900 + 2756274001209 = 8933830^2 + 1660203^2 .

It is a cyclic number.

It is not a de Polignac number, because 82569592470109 - 2¹⁷ = 82569592339037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82569592470119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41284796235054 + 41284796235055.

It is an arithmetic number, because the mean of its divisors is an integer number (41284796235055).

Almost surely, 2^{82569592470109} is an apocalyptic number.

It is an amenable number.

82569592470109 is a deficient number, since it is larger than the sum of its proper divisors (1).

82569592470109 is an equidigital number, since it uses as much as digits as its factorization.

82569592470109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97977600, while the sum is 67.

The spelling of 82569592470109 in words is "eighty-two trillion, five hundred sixty-nine billion, five hundred ninety-two million, four hundred seventy thousand, one hundred nine".