71477005871 has 2 divisors, whose sum is σ = 71477005872. Its totient is φ = 71477005870.

The previous prime is 71477005867. The next prime is 71477005883. The reversal of 71477005871 is 17850077417.

It is a weak prime.

It is an emirp because it is prime and its reverse (17850077417) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71477005871 - 2² = 71477005867 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71477065871) 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, 35738502935 + 35738502936.

It is an arithmetic number, because the mean of its divisors is an integer number (35738502936).

Almost surely, 2^71477005871 is an apocalyptic number.

71477005871 is a deficient number, since it is larger than the sum of its proper divisors (1).

71477005871 is an equidigital number, since it uses as much as digits as its factorization.

71477005871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384160, while the sum is 47.

The spelling of 71477005871 in words is "seventy-one billion, four hundred seventy-seven million, five thousand, eight hundred seventy-one".