71110888447 has 2 divisors, whose sum is σ = 71110888448. Its totient is φ = 71110888446.

The previous prime is 71110888427. The next prime is 71110888507. The reversal of 71110888447 is 74488801117.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71110888447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71110888447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71110888427) 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, 35555444223 + 35555444224.

It is an arithmetic number, because the mean of its divisors is an integer number (35555444224).

Almost surely, 2^71110888447 is an apocalyptic number.

71110888447 is a deficient number, since it is larger than the sum of its proper divisors (1).

71110888447 is an equidigital number, since it uses as much as digits as its factorization.

71110888447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 401408, while the sum is 49.

The spelling of 71110888447 in words is "seventy-one billion, one hundred ten million, eight hundred eighty-eight thousand, four hundred forty-seven".