2042188420609 has 4 divisors (see below), whose sum is σ = 2044265927616. Its totient is φ = 2040110913604.

The previous prime is 2042188420579. The next prime is 2042188420621. The reversal of 2042188420609 is 9060248812402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2042188420609 - 2²⁵ = 2042154866177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2042188420669) 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 in 3 ways as a sum of consecutive naturals, for example, 1038752029 + ... + 1038753994.

It is an arithmetic number, because the mean of its divisors is an integer number (511066481904).

Almost surely, 2^{2042188420609} is an apocalyptic number.

It is an amenable number.

2042188420609 is a deficient number, since it is larger than the sum of its proper divisors (2077507007).

2042188420609 is an equidigital number, since it uses as much as digits as its factorization.

2042188420609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2077507006.

The product of its (nonzero) digits is 442368, while the sum is 46.

The spelling of 2042188420609 in words is "two trillion, forty-two billion, one hundred eighty-eight million, four hundred twenty thousand, six hundred nine".