71968262143 has 2 divisors, whose sum is σ = 71968262144. Its totient is φ = 71968262142.

The previous prime is 71968262137. The next prime is 71968262207. The reversal of 71968262143 is 34126286917.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71968262143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71968262243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35984131071 + 35984131072.

It is an arithmetic number, because the mean of its divisors is an integer number (35984131072).

Almost surely, 2^71968262143 is an apocalyptic number.

71968262143 is a deficient number, since it is larger than the sum of its proper divisors (1).

71968262143 is an equidigital number, since it uses as much as digits as its factorization.

71968262143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 49.

The spelling of 71968262143 in words is "seventy-one billion, nine hundred sixty-eight million, two hundred sixty-two thousand, one hundred forty-three".