42530184793 has 2 divisors, whose sum is σ = 42530184794. Its totient is φ = 42530184792.

The previous prime is 42530184773. The next prime is 42530184797. The reversal of 42530184793 is 39748103524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33528539664 + 9001645129 = 183108^2 + 94877^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42530184793 is a prime.

It is not a weakly prime, because it can be changed into another prime (42530184797) 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, 21265092396 + 21265092397.

It is an arithmetic number, because the mean of its divisors is an integer number (21265092397).

Almost surely, 2^42530184793 is an apocalyptic number.

It is an amenable number.

42530184793 is a deficient number, since it is larger than the sum of its proper divisors (1).

42530184793 is an equidigital number, since it uses as much as digits as its factorization.

42530184793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 42530184793 in words is "forty-two billion, five hundred thirty million, one hundred eighty-four thousand, seven hundred ninety-three".