83768246547857 has 2 divisors, whose sum is σ = 83768246547858. Its totient is φ = 83768246547856.

The previous prime is 83768246547851. The next prime is 83768246547871. The reversal of 83768246547857 is 75874564286738.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79049863218001 + 4718383329856 = 8890999^2 + 2172184^2 .

It is a cyclic number.

It is not a de Polignac number, because 83768246547857 - 2¹⁰ = 83768246546833 is a prime.

It is not a weakly prime, because it can be changed into another prime (83768246547851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41884123273928 + 41884123273929.

It is an arithmetic number, because the mean of its divisors is an integer number (41884123273929).

Almost surely, 2^{83768246547857} is an apocalyptic number.

It is an amenable number.

83768246547857 is a deficient number, since it is larger than the sum of its proper divisors (1).

83768246547857 is an equidigital number, since it uses as much as digits as its factorization.

83768246547857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15173222400, while the sum is 80.

The spelling of 83768246547857 in words is "eighty-three trillion, seven hundred sixty-eight billion, two hundred forty-six million, five hundred forty-seven thousand, eight hundred fifty-seven".