42703457273 has 2 divisors, whose sum is σ = 42703457274. Its totient is φ = 42703457272.

The previous prime is 42703457257. The next prime is 42703457359. The reversal of 42703457273 is 37275430724.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41193979369 + 1509477904 = 202963^2 + 38852^2 .

It is a cyclic number.

It is not a de Polignac number, because 42703457273 - 2⁴ = 42703457257 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (42703447273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21351728636 + 21351728637.

It is an arithmetic number, because the mean of its divisors is an integer number (21351728637).

Almost surely, 2^42703457273 is an apocalyptic number.

It is an amenable number.

42703457273 is a deficient number, since it is larger than the sum of its proper divisors (1).

42703457273 is an equidigital number, since it uses as much as digits as its factorization.

42703457273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 987840, while the sum is 44.

Adding to 42703457273 its reverse (37275430724), we get a palindrome (79978887997).

The spelling of 42703457273 in words is "forty-two billion, seven hundred three million, four hundred fifty-seven thousand, two hundred seventy-three".