38634266243717 has 2 divisors, whose sum is σ = 38634266243718. Its totient is φ = 38634266243716.

The previous prime is 38634266243641. The next prime is 38634266243723. The reversal of 38634266243717 is 71734266243683.

It is a happy number.

38634266243717 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., 29972493381796 + 8661772861921 = 5474714^2 + 2943089^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38634266243717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38634266243717.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38634266243117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19317133121858 + 19317133121859.

It is an arithmetic number, because the mean of its divisors is an integer number (19317133121859).

Almost surely, 2^{38634266243717} is an apocalyptic number.

It is an amenable number.

38634266243717 is a deficient number, since it is larger than the sum of its proper divisors (1).

38634266243717 is an equidigital number, since it uses as much as digits as its factorization.

38634266243717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 146313216, while the sum is 62.

The spelling of 38634266243717 in words is "thirty-eight trillion, six hundred thirty-four billion, two hundred sixty-six million, two hundred forty-three thousand, seven hundred seventeen".