42449300394497 has 2 divisors, whose sum is σ = 42449300394498. Its totient is φ = 42449300394496.

The previous prime is 42449300394409. The next prime is 42449300394541. The reversal of 42449300394497 is 79449300394424.

42449300394497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42427037068816 + 22263325681 = 6513604^2 + 149209^2 .

It is a cyclic number.

It is not a de Polignac number, because 42449300394497 - 2¹⁶ = 42449300328961 is a prime.

It is not a weakly prime, because it can be changed into another prime (42449300396497) 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, 21224650197248 + 21224650197249.

It is an arithmetic number, because the mean of its divisors is an integer number (21224650197249).

Almost surely, 2^{42449300394497} is an apocalyptic number.

It is an amenable number.

42449300394497 is a deficient number, since it is larger than the sum of its proper divisors (1).

42449300394497 is an equidigital number, since it uses as much as digits as its factorization.

42449300394497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94058496, while the sum is 62.

The spelling of 42449300394497 in words is "forty-two trillion, four hundred forty-nine billion, three hundred million, three hundred ninety-four thousand, four hundred ninety-seven".