65068616851877 has 2 divisors, whose sum is σ = 65068616851878. Its totient is φ = 65068616851876.

The previous prime is 65068616851841. The next prime is 65068616851957. The reversal of 65068616851877 is 77815861686056.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50010227947681 + 15058388904196 = 7071791^2 + 3880514^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65068616851877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65068616854877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32534308425938 + 32534308425939.

It is an arithmetic number, because the mean of its divisors is an integer number (32534308425939).

Almost surely, 2^{65068616851877} is an apocalyptic number.

It is an amenable number.

65068616851877 is a deficient number, since it is larger than the sum of its proper divisors (1).

65068616851877 is an equidigital number, since it uses as much as digits as its factorization.

65068616851877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 812851200, while the sum is 74.

The spelling of 65068616851877 in words is "sixty-five trillion, sixty-eight billion, six hundred sixteen million, eight hundred fifty-one thousand, eight hundred seventy-seven".