42189232427 has 2 divisors, whose sum is σ = 42189232428. Its totient is φ = 42189232426.

The previous prime is 42189232417. The next prime is 42189232441. The reversal of 42189232427 is 72423298124.

42189232427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42189232427 - 2¹² = 42189228331 is a prime.

It is not a weakly prime, because it can be changed into another prime (42189232417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21094616213 + 21094616214.

It is an arithmetic number, because the mean of its divisors is an integer number (21094616214).

Almost surely, 2^42189232427 is an apocalyptic number.

42189232427 is a deficient number, since it is larger than the sum of its proper divisors (1).

42189232427 is an equidigital number, since it uses as much as digits as its factorization.

42189232427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 44.

The spelling of 42189232427 in words is "forty-two billion, one hundred eighty-nine million, two hundred thirty-two thousand, four hundred twenty-seven".