42224004073 has 2 divisors, whose sum is σ = 42224004074. Its totient is φ = 42224004072.

The previous prime is 42224003999. The next prime is 42224004079. The reversal of 42224004073 is 37040042224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41147311104 + 1076692969 = 202848^2 + 32813^2 .

It is a cyclic number.

It is not a de Polignac number, because 42224004073 - 2²¹ = 42221906921 is a prime.

It is not a weakly prime, because it can be changed into another prime (42224004079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21112002036 + 21112002037.

It is an arithmetic number, because the mean of its divisors is an integer number (21112002037).

Almost surely, 2^42224004073 is an apocalyptic number.

It is an amenable number.

42224004073 is a deficient number, since it is larger than the sum of its proper divisors (1).

42224004073 is an equidigital number, since it uses as much as digits as its factorization.

42224004073 is an evil number, because the sum of its binary digits is even.

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

Adding to 42224004073 its reverse (37040042224), we get a palindrome (79264046297).

The spelling of 42224004073 in words is "forty-two billion, two hundred twenty-four million, four thousand, seventy-three".