68840827271 has 2 divisors, whose sum is σ = 68840827272. Its totient is φ = 68840827270.

The previous prime is 68840827243. The next prime is 68840827343. The reversal of 68840827271 is 17272804886.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68840827271 - 2²² = 68836632967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68840827771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34420413635 + 34420413636.

It is an arithmetic number, because the mean of its divisors is an integer number (34420413636).

Almost surely, 2^68840827271 is an apocalyptic number.

68840827271 is a deficient number, since it is larger than the sum of its proper divisors (1).

68840827271 is an equidigital number, since it uses as much as digits as its factorization.

68840827271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2408448, while the sum is 53.

The spelling of 68840827271 in words is "sixty-eight billion, eight hundred forty million, eight hundred twenty-seven thousand, two hundred seventy-one".