42045777229 has 2 divisors, whose sum is σ = 42045777230. Its totient is φ = 42045777228.

The previous prime is 42045777227. The next prime is 42045777251. The reversal of 42045777229 is 92277754024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27788223204 + 14257554025 = 166698^2 + 119405^2 .

It is a cyclic number.

It is not a de Polignac number, because 42045777229 - 2¹ = 42045777227 is a prime.

Together with 42045777227, 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 (42045777227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21022888614 + 21022888615.

It is an arithmetic number, because the mean of its divisors is an integer number (21022888615).

Almost surely, 2^42045777229 is an apocalyptic number.

It is an amenable number.

42045777229 is a deficient number, since it is larger than the sum of its proper divisors (1).

42045777229 is an equidigital number, since it uses as much as digits as its factorization.

42045777229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1975680, while the sum is 49.

The spelling of 42045777229 in words is "forty-two billion, forty-five million, seven hundred seventy-seven thousand, two hundred twenty-nine".