42137434189 has 2 divisors, whose sum is σ = 42137434190. Its totient is φ = 42137434188.

The previous prime is 42137434169. The next prime is 42137434331. The reversal of 42137434189 is 98143473124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31278752164 + 10858682025 = 176858^2 + 104205^2 .

It is a cyclic number.

It is not a de Polignac number, because 42137434189 - 2²⁷ = 42003216461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42137434169) 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, 21068717094 + 21068717095.

It is an arithmetic number, because the mean of its divisors is an integer number (21068717095).

Almost surely, 2^42137434189 is an apocalyptic number.

It is an amenable number.

42137434189 is a deficient number, since it is larger than the sum of its proper divisors (1).

42137434189 is an equidigital number, since it uses as much as digits as its factorization.

42137434189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 46.

The spelling of 42137434189 in words is "forty-two billion, one hundred thirty-seven million, four hundred thirty-four thousand, one hundred eighty-nine".