40887137717 has 2 divisors, whose sum is σ = 40887137718. Its totient is φ = 40887137716.

The previous prime is 40887137677. The next prime is 40887137741. The reversal of 40887137717 is 71773178804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38866545316 + 2020592401 = 197146^2 + 44951^2 .

It is a cyclic number.

It is not a de Polignac number, because 40887137717 - 2¹⁴ = 40887121333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40887137777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20443568858 + 20443568859.

It is an arithmetic number, because the mean of its divisors is an integer number (20443568859).

Almost surely, 2^40887137717 is an apocalyptic number.

It is an amenable number.

40887137717 is a deficient number, since it is larger than the sum of its proper divisors (1).

40887137717 is an equidigital number, since it uses as much as digits as its factorization.

40887137717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1843968, while the sum is 53.

The spelling of 40887137717 in words is "forty billion, eight hundred eighty-seven million, one hundred thirty-seven thousand, seven hundred seventeen".