40544459717 has 2 divisors, whose sum is σ = 40544459718. Its totient is φ = 40544459716.

The previous prime is 40544459677. The next prime is 40544459719. The reversal of 40544459717 is 71795444504.

40544459717 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., 35371829476 + 5172630241 = 188074^2 + 71921^2 .

It is a cyclic number.

It is not a de Polignac number, because 40544459717 - 2¹⁰ = 40544458693 is a prime.

Together with 40544459719, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40544459719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20272229858 + 20272229859.

It is an arithmetic number, because the mean of its divisors is an integer number (20272229859).

Almost surely, 2^40544459717 is an apocalyptic number.

It is an amenable number.

40544459717 is a deficient number, since it is larger than the sum of its proper divisors (1).

40544459717 is an equidigital number, since it uses as much as digits as its factorization.

40544459717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2822400, while the sum is 50.

The spelling of 40544459717 in words is "forty billion, five hundred forty-four million, four hundred fifty-nine thousand, seven hundred seventeen".