42850468318109 has 2 divisors, whose sum is σ = 42850468318110. Its totient is φ = 42850468318108.

The previous prime is 42850468318087. The next prime is 42850468318117. The reversal of 42850468318109 is 90181386405824.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41074704192025 + 1775764126084 = 6408955^2 + 1332578^2 .

It is a cyclic number.

It is not a de Polignac number, because 42850468318109 - 2¹² = 42850468314013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42850468318129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21425234159054 + 21425234159055.

It is an arithmetic number, because the mean of its divisors is an integer number (21425234159055).

Almost surely, 2^{42850468318109} is an apocalyptic number.

It is an amenable number.

42850468318109 is a deficient number, since it is larger than the sum of its proper divisors (1).

42850468318109 is an equidigital number, since it uses as much as digits as its factorization.

42850468318109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13271040, while the sum is 59.

The spelling of 42850468318109 in words is "forty-two trillion, eight hundred fifty billion, four hundred sixty-eight million, three hundred eighteen thousand, one hundred nine".