42425043289 has 2 divisors, whose sum is σ = 42425043290. Its totient is φ = 42425043288.

The previous prime is 42425043281. The next prime is 42425043317. The reversal of 42425043289 is 98234052424.

It is a happy number.

42425043289 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 can be written as a sum of positive squares in only one way, i.e., 42401810889 + 23232400 = 205917^2 + 4820^2 .

It is a cyclic number.

It is not a de Polignac number, because 42425043289 - 2³ = 42425043281 is a prime.

It is not a weakly prime, because it can be changed into another prime (42425043281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21212521644 + 21212521645.

It is an arithmetic number, because the mean of its divisors is an integer number (21212521645).

Almost surely, 2^42425043289 is an apocalyptic number.

It is an amenable number.

42425043289 is a deficient number, since it is larger than the sum of its proper divisors (1).

42425043289 is an equidigital number, since it uses as much as digits as its factorization.

42425043289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 552960, while the sum is 43.

The spelling of 42425043289 in words is "forty-two billion, four hundred twenty-five million, forty-three thousand, two hundred eighty-nine".