40620535717 has 2 divisors, whose sum is σ = 40620535718. Its totient is φ = 40620535716.

The previous prime is 40620535649. The next prime is 40620535733. The reversal of 40620535717 is 71753502604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24953257156 + 15667278561 = 157966^2 + 125169^2 .

It is a cyclic number.

It is not a de Polignac number, because 40620535717 - 2³¹ = 38473052069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40620535717.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40620535817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20310267858 + 20310267859.

It is an arithmetic number, because the mean of its divisors is an integer number (20310267859).

Almost surely, 2^40620535717 is an apocalyptic number.

It is an amenable number.

40620535717 is a deficient number, since it is larger than the sum of its proper divisors (1).

40620535717 is an equidigital number, since it uses as much as digits as its factorization.

40620535717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 176400, while the sum is 40.

The spelling of 40620535717 in words is "forty billion, six hundred twenty million, five hundred thirty-five thousand, seven hundred seventeen".