71470222247 has 2 divisors, whose sum is σ = 71470222248. Its totient is φ = 71470222246.

The previous prime is 71470222181. The next prime is 71470222249. The reversal of 71470222247 is 74222207417.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71470222247 is a prime.

Together with 71470222249, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71470222247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71470222249) 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, 35735111123 + 35735111124.

It is an arithmetic number, because the mean of its divisors is an integer number (35735111124).

Almost surely, 2^71470222247 is an apocalyptic number.

71470222247 is a deficient number, since it is larger than the sum of its proper divisors (1).

71470222247 is an equidigital number, since it uses as much as digits as its factorization.

71470222247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87808, while the sum is 38.

The spelling of 71470222247 in words is "seventy-one billion, four hundred seventy million, two hundred twenty-two thousand, two hundred forty-seven".