71094485171447 has 4 divisors (see below), whose sum is σ = 71161492227336. Its totient is φ = 71027478115560.

The previous prime is 71094485171419. The next prime is 71094485171453. The reversal of 71094485171447 is 74417158449017.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71094485171447 - 2¹⁸ = 71094484909303 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71094485171447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71094485171407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33503526353 + ... + 33503528474.

It is an arithmetic number, because the mean of its divisors is an integer number (17790373056834).

Almost surely, 2^{71094485171447} is an apocalyptic number.

71094485171447 is a deficient number, since it is larger than the sum of its proper divisors (67007055889).

71094485171447 is a wasteful number, since it uses less digits than its factorization.

71094485171447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67007055888.

The product of its (nonzero) digits is 31610880, while the sum is 62.

The spelling of 71094485171447 in words is "seventy-one trillion, ninety-four billion, four hundred eighty-five million, one hundred seventy-one thousand, four hundred forty-seven".