65085717947 has 2 divisors, whose sum is σ = 65085717948. Its totient is φ = 65085717946.

The previous prime is 65085717901. The next prime is 65085717967. The reversal of 65085717947 is 74971758056.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65085717947 - 2¹⁸ = 65085455803 is a prime.

It is not a weakly prime, because it can be changed into another prime (65085717967) 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, 32542858973 + 32542858974.

It is an arithmetic number, because the mean of its divisors is an integer number (32542858974).

Almost surely, 2^65085717947 is an apocalyptic number.

65085717947 is a deficient number, since it is larger than the sum of its proper divisors (1).

65085717947 is an equidigital number, since it uses as much as digits as its factorization.

65085717947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14817600, while the sum is 59.

The spelling of 65085717947 in words is "sixty-five billion, eighty-five million, seven hundred seventeen thousand, nine hundred forty-seven".