42242400073 has 2 divisors, whose sum is σ = 42242400074. Its totient is φ = 42242400072.

The previous prime is 42242400059. The next prime is 42242400121. The reversal of 42242400073 is 37000424224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27611804224 + 14630595849 = 166168^2 + 120957^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42242400073 is a prime.

It is not a weakly prime, because it can be changed into another prime (42242440073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21121200036 + 21121200037.

It is an arithmetic number, because the mean of its divisors is an integer number (21121200037).

Almost surely, 2^42242400073 is an apocalyptic number.

It is an amenable number.

42242400073 is a deficient number, since it is larger than the sum of its proper divisors (1).

42242400073 is an equidigital number, since it uses as much as digits as its factorization.

42242400073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 28.

Adding to 42242400073 its reverse (37000424224), we get a palindrome (79242824297).

The spelling of 42242400073 in words is "forty-two billion, two hundred forty-two million, four hundred thousand, seventy-three".