442625590709 has 2 divisors, whose sum is σ = 442625590710. Its totient is φ = 442625590708.

The previous prime is 442625590703. The next prime is 442625590717. The reversal of 442625590709 is 907095526244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 381466816900 + 61158773809 = 617630^2 + 247303^2 .

It is a cyclic number.

It is not a de Polignac number, because 442625590709 - 2⁸ = 442625590453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442625590703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221312795354 + 221312795355.

It is an arithmetic number, because the mean of its divisors is an integer number (221312795355).

Almost surely, 2^442625590709 is an apocalyptic number.

It is an amenable number.

442625590709 is a deficient number, since it is larger than the sum of its proper divisors (1).

442625590709 is an equidigital number, since it uses as much as digits as its factorization.

442625590709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5443200, while the sum is 53.

The spelling of 442625590709 in words is "four hundred forty-two billion, six hundred twenty-five million, five hundred ninety thousand, seven hundred nine".