42842240053 has 2 divisors, whose sum is σ = 42842240054. Its totient is φ = 42842240052.

The previous prime is 42842239997. The next prime is 42842240057. The reversal of 42842240053 is 35004224824.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42568767684 + 273472369 = 206322^2 + 16537^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42842240053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42842240057) 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, 21421120026 + 21421120027.

It is an arithmetic number, because the mean of its divisors is an integer number (21421120027).

Almost surely, 2^42842240053 is an apocalyptic number.

It is an amenable number.

42842240053 is a deficient number, since it is larger than the sum of its proper divisors (1).

42842240053 is an equidigital number, since it uses as much as digits as its factorization.

42842240053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61440, while the sum is 34.

Adding to 42842240053 its reverse (35004224824), we get a palindrome (77846464877).

The spelling of 42842240053 in words is "forty-two billion, eight hundred forty-two million, two hundred forty thousand, fifty-three".