42331118773 has 2 divisors, whose sum is σ = 42331118774. Its totient is φ = 42331118772.

The previous prime is 42331118771. The next prime is 42331118801. The reversal of 42331118773 is 37781113324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34157693124 + 8173425649 = 184818^2 + 90407^2 .

It is a cyclic number.

It is not a de Polignac number, because 42331118773 - 2¹ = 42331118771 is a prime.

Together with 42331118771, 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 (42331118771) 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, 21165559386 + 21165559387.

It is an arithmetic number, because the mean of its divisors is an integer number (21165559387).

Almost surely, 2^42331118773 is an apocalyptic number.

It is an amenable number.

42331118773 is a deficient number, since it is larger than the sum of its proper divisors (1).

42331118773 is an equidigital number, since it uses as much as digits as its factorization.

42331118773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 40.

The spelling of 42331118773 in words is "forty-two billion, three hundred thirty-one million, one hundred eighteen thousand, seven hundred seventy-three".