42034254389 has 2 divisors, whose sum is σ = 42034254390. Its totient is φ = 42034254388.

The previous prime is 42034254341. The next prime is 42034254467. The reversal of 42034254389 is 98345243024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23955300625 + 18078953764 = 154775^2 + 134458^2 .

It is a cyclic number.

It is not a de Polignac number, because 42034254389 - 2¹⁶ = 42034188853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42034254289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21017127194 + 21017127195.

It is an arithmetic number, because the mean of its divisors is an integer number (21017127195).

Almost surely, 2^42034254389 is an apocalyptic number.

It is an amenable number.

42034254389 is a deficient number, since it is larger than the sum of its proper divisors (1).

42034254389 is an equidigital number, since it uses as much as digits as its factorization.

42034254389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 829440, while the sum is 44.

The spelling of 42034254389 in words is "forty-two billion, thirty-four million, two hundred fifty-four thousand, three hundred eighty-nine".