4042656804019 has 2 divisors, whose sum is σ = 4042656804020. Its totient is φ = 4042656804018.

The previous prime is 4042656803959. The next prime is 4042656804037. The reversal of 4042656804019 is 9104086562404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4042656804019 - 2⁷ = 4042656803891 is a prime.

It is a super-2 number, since 2×4042656804019² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4042656804049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2021328402009 + 2021328402010.

It is an arithmetic number, because the mean of its divisors is an integer number (2021328402010).

Almost surely, 2^{4042656804019} is an apocalyptic number.

4042656804019 is a deficient number, since it is larger than the sum of its proper divisors (1).

4042656804019 is an equidigital number, since it uses as much as digits as its factorization.

4042656804019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 4042656804019 in words is "four trillion, forty-two billion, six hundred fifty-six million, eight hundred four thousand, nineteen".