42401938717 has 2 divisors, whose sum is σ = 42401938718. Its totient is φ = 42401938716.

The previous prime is 42401938669. The next prime is 42401938763. The reversal of 42401938717 is 71783910424.

It is an a-pointer prime, because the next prime (42401938763) can be obtained adding 42401938717 to its sum of digits (46).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42394398201 + 7540516 = 205899^2 + 2746^2 .

It is a cyclic number.

It is not a de Polignac number, because 42401938717 - 2¹¹ = 42401936669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42401938417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21200969358 + 21200969359.

It is an arithmetic number, because the mean of its divisors is an integer number (21200969359).

Almost surely, 2^42401938717 is an apocalyptic number.

It is an amenable number.

42401938717 is a deficient number, since it is larger than the sum of its proper divisors (1).

42401938717 is an equidigital number, since it uses as much as digits as its factorization.

42401938717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 338688, while the sum is 46.

The spelling of 42401938717 in words is "forty-two billion, four hundred one million, nine hundred thirty-eight thousand, seven hundred seventeen".