38685384113617 has 2 divisors, whose sum is σ = 38685384113618. Its totient is φ = 38685384113616.

The previous prime is 38685384113569. The next prime is 38685384113669. The reversal of 38685384113617 is 71631148358683.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26947353095056 + 11738031018561 = 5191084^2 + 3426081^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38685384113617 is a prime.

It is not a weakly prime, because it can be changed into another prime (38685384113317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19342692056808 + 19342692056809.

It is an arithmetic number, because the mean of its divisors is an integer number (19342692056809).

Almost surely, 2^{38685384113617} is an apocalyptic number.

It is an amenable number.

38685384113617 is a deficient number, since it is larger than the sum of its proper divisors (1).

38685384113617 is an equidigital number, since it uses as much as digits as its factorization.

38685384113617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69672960, while the sum is 64.

The spelling of 38685384113617 in words is "thirty-eight trillion, six hundred eighty-five billion, three hundred eighty-four million, one hundred thirteen thousand, six hundred seventeen".