68108325427 has 2 divisors, whose sum is σ = 68108325428. Its totient is φ = 68108325426.

The previous prime is 68108325421. The next prime is 68108325473. The reversal of 68108325427 is 72452380186.

It is an a-pointer prime, because the next prime (68108325473) can be obtained adding 68108325427 to its sum of digits (46).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68108325427 is a prime.

It is not a weakly prime, because it can be changed into another prime (68108325421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34054162713 + 34054162714.

It is an arithmetic number, because the mean of its divisors is an integer number (34054162714).

Almost surely, 2^68108325427 is an apocalyptic number.

68108325427 is a deficient number, since it is larger than the sum of its proper divisors (1).

68108325427 is an equidigital number, since it uses as much as digits as its factorization.

68108325427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 68108325427 in words is "sixty-eight billion, one hundred eight million, three hundred twenty-five thousand, four hundred twenty-seven".