68367367051871 has 2 divisors, whose sum is σ = 68367367051872. Its totient is φ = 68367367051870.

The previous prime is 68367367051831. The next prime is 68367367051957. The reversal of 68367367051871 is 17815076376386.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68367367051871 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68367367051831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34183683525935 + 34183683525936.

It is an arithmetic number, because the mean of its divisors is an integer number (34183683525936).

Almost surely, 2^{68367367051871} is an apocalyptic number.

68367367051871 is a deficient number, since it is larger than the sum of its proper divisors (1).

68367367051871 is an equidigital number, since it uses as much as digits as its factorization.

68367367051871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 213373440, while the sum is 68.

The spelling of 68367367051871 in words is "sixty-eight trillion, three hundred sixty-seven billion, three hundred sixty-seven million, fifty-one thousand, eight hundred seventy-one".