68102563579 has 2 divisors, whose sum is σ = 68102563580. Its totient is φ = 68102563578.

The previous prime is 68102563553. The next prime is 68102563631. The reversal of 68102563579 is 97536520186.

It is an a-pointer prime, because the next prime (68102563631) can be obtained adding 68102563579 to its sum of digits (52).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68102563579 - 2¹¹ = 68102561531 is a prime.

It is not a weakly prime, because it can be changed into another prime (68102563519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34051281789 + 34051281790.

It is an arithmetic number, because the mean of its divisors is an integer number (34051281790).

Almost surely, 2^68102563579 is an apocalyptic number.

68102563579 is a deficient number, since it is larger than the sum of its proper divisors (1).

68102563579 is an equidigital number, since it uses as much as digits as its factorization.

68102563579 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2721600, while the sum is 52.

The spelling of 68102563579 in words is "sixty-eight billion, one hundred two million, five hundred sixty-three thousand, five hundred seventy-nine".