71030550447 has 24 divisors (see below), whose sum is σ = 104029633344. Its totient is φ = 46694029824.

The previous prime is 71030550443. The next prime is 71030550457. The reversal of 71030550447 is 74405503017.

It is a happy number.

71030550447 is a `hidden beast` number, since 7 + 103 + 0 + 5 + 504 + 47 = 666.

It is not a de Polignac number, because 71030550447 - 2² = 71030550443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71030550443) 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 in 23 ways as a sum of consecutive naturals, for example, 3533178 + ... + 3553224.

It is an arithmetic number, because the mean of its divisors is an integer number (4334568056).

Almost surely, 2^71030550447 is an apocalyptic number.

71030550447 is a deficient number, since it is larger than the sum of its proper divisors (32999082897).

71030550447 is a wasteful number, since it uses less digits than its factorization.

71030550447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25519 (or 25516 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The spelling of 71030550447 in words is "seventy-one billion, thirty million, five hundred fifty thousand, four hundred forty-seven".