71041894105 has 32 divisors (see below), whose sum is σ = 106187606784. Its totient is φ = 44425380096.

The previous prime is 71041894061. The next prime is 71041894163. The reversal of 71041894105 is 50149814017.

It is a cyclic number.

It is not a de Polignac number, because 71041894105 - 2¹⁵ = 71041861337 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 902814 + ... + 978343.

It is an arithmetic number, because the mean of its divisors is an integer number (3318362712).

Almost surely, 2^71041894105 is an apocalyptic number.

It is an amenable number.

71041894105 is a deficient number, since it is larger than the sum of its proper divisors (35145712679).

71041894105 is a wasteful number, since it uses less digits than its factorization.

71041894105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881265.

The product of its (nonzero) digits is 40320, while the sum is 40.

The spelling of 71041894105 in words is "seventy-one billion, forty-one million, eight hundred ninety-four thousand, one hundred five".