67984857601 has 2 divisors, whose sum is σ = 67984857602. Its totient is φ = 67984857600.

The previous prime is 67984857559. The next prime is 67984857659. The reversal of 67984857601 is 10675848976.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59880537025 + 8104320576 = 244705^2 + 90024^2 .

It is a cyclic number.

It is not a de Polignac number, because 67984857601 - 2⁹ = 67984857089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67984857601.

It is not a weakly prime, because it can be changed into another prime (64984857601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33992428800 + 33992428801.

It is an arithmetic number, because the mean of its divisors is an integer number (33992428801).

Almost surely, 2^67984857601 is an apocalyptic number.

It is an amenable number.

67984857601 is a deficient number, since it is larger than the sum of its proper divisors (1).

67984857601 is an equidigital number, since it uses as much as digits as its factorization.

67984857601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20321280, while the sum is 61.

It can be divided in two parts, 6798485 and 7601, that added together give a palindrome (6806086).

The spelling of 67984857601 in words is "sixty-seven billion, nine hundred eighty-four million, eight hundred fifty-seven thousand, six hundred one".