68548676639 has 2 divisors, whose sum is σ = 68548676640. Its totient is φ = 68548676638.

The previous prime is 68548676611. The next prime is 68548676711. The reversal of 68548676639 is 93667684586.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68548676639 - 2²⁰ = 68547628063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68548676839) 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, 34274338319 + 34274338320.

It is an arithmetic number, because the mean of its divisors is an integer number (34274338320).

Almost surely, 2^68548676639 is an apocalyptic number.

68548676639 is a deficient number, since it is larger than the sum of its proper divisors (1).

68548676639 is an equidigital number, since it uses as much as digits as its factorization.

68548676639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 313528320, while the sum is 68.

The spelling of 68548676639 in words is "sixty-eight billion, five hundred forty-eight million, six hundred seventy-six thousand, six hundred thirty-nine".