42082025009 has 2 divisors, whose sum is σ = 42082025010. Its totient is φ = 42082025008.

The previous prime is 42082024889. The next prime is 42082025017. The reversal of 42082025009 is 90052028024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29746590784 + 12335434225 = 172472^2 + 111065^2 .

It is a cyclic number.

It is not a de Polignac number, because 42082025009 - 2²⁸ = 41813589553 is a prime.

It is not a weakly prime, because it can be changed into another prime (42082025099) 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, 21041012504 + 21041012505.

It is an arithmetic number, because the mean of its divisors is an integer number (21041012505).

Almost surely, 2^42082025009 is an apocalyptic number.

It is an amenable number.

42082025009 is a deficient number, since it is larger than the sum of its proper divisors (1).

42082025009 is an equidigital number, since it uses as much as digits as its factorization.

42082025009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 42082025009 in words is "forty-two billion, eighty-two million, twenty-five thousand, nine".