42503441424637 has 2 divisors, whose sum is σ = 42503441424638. Its totient is φ = 42503441424636.

The previous prime is 42503441424611. The next prime is 42503441424641. The reversal of 42503441424637 is 73642414430524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27892615571716 + 14610825852921 = 5281346^2 + 3822411^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42503441424637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42503441427637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21251720712318 + 21251720712319.

It is an arithmetic number, because the mean of its divisors is an integer number (21251720712319).

Almost surely, 2^{42503441424637} is an apocalyptic number.

It is an amenable number.

42503441424637 is a deficient number, since it is larger than the sum of its proper divisors (1).

42503441424637 is an equidigital number, since it uses as much as digits as its factorization.

42503441424637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7741440, while the sum is 49.

The spelling of 42503441424637 in words is "forty-two trillion, five hundred three billion, four hundred forty-one million, four hundred twenty-four thousand, six hundred thirty-seven".