68986116042461 has 2 divisors, whose sum is σ = 68986116042462. Its totient is φ = 68986116042460.

The previous prime is 68986116042439. The next prime is 68986116042509. The reversal of 68986116042461 is 16424061168986.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63344184716836 + 5641931325625 = 7958906^2 + 2375275^2 .

It is a cyclic number.

It is not a de Polignac number, because 68986116042461 - 2¹⁸ = 68986115780317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68986116042394 and 68986116042403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68986116042161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34493058021230 + 34493058021231.

It is an arithmetic number, because the mean of its divisors is an integer number (34493058021231).

Almost surely, 2^{68986116042461} is an apocalyptic number.

It is an amenable number.

68986116042461 is a deficient number, since it is larger than the sum of its proper divisors (1).

68986116042461 is an equidigital number, since it uses as much as digits as its factorization.

68986116042461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23887872, while the sum is 62.

The spelling of 68986116042461 in words is "sixty-eight trillion, nine hundred eighty-six billion, one hundred sixteen million, forty-two thousand, four hundred sixty-one".