42204056189 has 2 divisors, whose sum is σ = 42204056190. Its totient is φ = 42204056188.

The previous prime is 42204056183. The next prime is 42204056263. The reversal of 42204056189 is 98165040224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25470564025 + 16733492164 = 159595^2 + 129358^2 .

It is a cyclic number.

It is not a de Polignac number, because 42204056189 - 2⁴ = 42204056173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42204056183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21102028094 + 21102028095.

It is an arithmetic number, because the mean of its divisors is an integer number (21102028095).

Almost surely, 2^42204056189 is an apocalyptic number.

It is an amenable number.

42204056189 is a deficient number, since it is larger than the sum of its proper divisors (1).

42204056189 is an equidigital number, since it uses as much as digits as its factorization.

42204056189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 41.

The spelling of 42204056189 in words is "forty-two billion, two hundred four million, fifty-six thousand, one hundred eighty-nine".