38820505549117 has 2 divisors, whose sum is σ = 38820505549118. Its totient is φ = 38820505549116.

The previous prime is 38820505549051. The next prime is 38820505549159. The reversal of 38820505549117 is 71194550502883.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28421757414436 + 10398748134681 = 5331206^2 + 3224709^2 .

It is a cyclic number.

It is not a de Polignac number, because 38820505549117 - 2⁷ = 38820505548989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38820505549517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19410252774558 + 19410252774559.

It is an arithmetic number, because the mean of its divisors is an integer number (19410252774559).

Almost surely, 2^{38820505549117} is an apocalyptic number.

It is an amenable number.

38820505549117 is a deficient number, since it is larger than the sum of its proper divisors (1).

38820505549117 is an equidigital number, since it uses as much as digits as its factorization.

38820505549117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096000, while the sum is 58.

The spelling of 38820505549117 in words is "thirty-eight trillion, eight hundred twenty billion, five hundred five million, five hundred forty-nine thousand, one hundred seventeen".