42142363189 has 2 divisors, whose sum is σ = 42142363190. Its totient is φ = 42142363188.

The previous prime is 42142363187. The next prime is 42142363217. The reversal of 42142363189 is 98136324124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41347968964 + 794394225 = 203342^2 + 28185^2 .

It is a cyclic number.

It is not a de Polignac number, because 42142363189 - 2¹ = 42142363187 is a prime.

Together with 42142363187, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42142363183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21071181594 + 21071181595.

It is an arithmetic number, because the mean of its divisors is an integer number (21071181595).

Almost surely, 2^42142363189 is an apocalyptic number.

It is an amenable number.

42142363189 is a deficient number, since it is larger than the sum of its proper divisors (1).

42142363189 is an equidigital number, since it uses as much as digits as its factorization.

42142363189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 43.

The spelling of 42142363189 in words is "forty-two billion, one hundred forty-two million, three hundred sixty-three thousand, one hundred eighty-nine".