642030865703 has 2 divisors, whose sum is σ = 642030865704. Its totient is φ = 642030865702.

The previous prime is 642030865583. The next prime is 642030865733. The reversal of 642030865703 is 307568030246.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 642030865703 - 2⁸ = 642030865447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (642030865733) 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, 321015432851 + 321015432852.

It is an arithmetic number, because the mean of its divisors is an integer number (321015432852).

Almost surely, 2^642030865703 is an apocalyptic number.

642030865703 is a deficient number, since it is larger than the sum of its proper divisors (1).

642030865703 is an equidigital number, since it uses as much as digits as its factorization.

642030865703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 44.

Adding to 642030865703 its reverse (307568030246), we get a palindrome (949598895949).

The spelling of 642030865703 in words is "six hundred forty-two billion, thirty million, eight hundred sixty-five thousand, seven hundred three".