82523869009 has 2 divisors, whose sum is σ = 82523869010. Its totient is φ = 82523869008.

The previous prime is 82523868989. The next prime is 82523869027. The reversal of 82523869009 is 90096832528.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43161309009 + 39362560000 = 207753^2 + 198400^2 .

It is a cyclic number.

It is not a de Polignac number, because 82523869009 - 2¹⁷ = 82523737937 is a prime.

It is not a weakly prime, because it can be changed into another prime (82523860009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41261934504 + 41261934505.

It is an arithmetic number, because the mean of its divisors is an integer number (41261934505).

Almost surely, 2^82523869009 is an apocalyptic number.

It is an amenable number.

82523869009 is a deficient number, since it is larger than the sum of its proper divisors (1).

82523869009 is an equidigital number, since it uses as much as digits as its factorization.

82523869009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 52.

The spelling of 82523869009 in words is "eighty-two billion, five hundred twenty-three million, eight hundred sixty-nine thousand, nine".