42465054640117 has 2 divisors, whose sum is σ = 42465054640118. Its totient is φ = 42465054640116.

The previous prime is 42465054640097. The next prime is 42465054640147. The reversal of 42465054640117 is 71104645056424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38366701375396 + 4098353264721 = 6194086^2 + 2024439^2 .

It is a cyclic number.

It is not a de Polignac number, because 42465054640117 - 2¹⁹ = 42465054115829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42465054640147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21232527320058 + 21232527320059.

It is an arithmetic number, because the mean of its divisors is an integer number (21232527320059).

Almost surely, 2^{42465054640117} is an apocalyptic number.

It is an amenable number.

42465054640117 is a deficient number, since it is larger than the sum of its proper divisors (1).

42465054640117 is an equidigital number, since it uses as much as digits as its factorization.

42465054640117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3225600, while the sum is 49.

The spelling of 42465054640117 in words is "forty-two trillion, four hundred sixty-five billion, fifty-four million, six hundred forty thousand, one hundred seventeen".