68529952871539 has 2 divisors, whose sum is σ = 68529952871540. Its totient is φ = 68529952871538.

The previous prime is 68529952871507. The next prime is 68529952871579. The reversal of 68529952871539 is 93517825992586.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68529952871539 - 2⁵ = 68529952871507 is a prime.

It is not a weakly prime, because it can be changed into another prime (68529952871579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34264976435769 + 34264976435770.

It is an arithmetic number, because the mean of its divisors is an integer number (34264976435770).

Almost surely, 2^{68529952871539} is an apocalyptic number.

68529952871539 is a deficient number, since it is larger than the sum of its proper divisors (1).

68529952871539 is an equidigital number, since it uses as much as digits as its factorization.

68529952871539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2939328000, while the sum is 79.

The spelling of 68529952871539 in words is "sixty-eight trillion, five hundred twenty-nine billion, nine hundred fifty-two million, eight hundred seventy-one thousand, five hundred thirty-nine".