71804341865 has 16 divisors (see below), whose sum is σ = 87895253952. Its totient is φ = 56298817344.

The previous prime is 71804341849. The next prime is 71804341867. The reversal of 71804341865 is 56814340817.

It is a cyclic number.

It is not a de Polignac number, because 71804341865 - 2⁴ = 71804341849 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71804341867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 478019 + ... + 610008.

It is an arithmetic number, because the mean of its divisors is an integer number (5493453372).

Almost surely, 2^71804341865 is an apocalyptic number.

It is an amenable number.

71804341865 is a deficient number, since it is larger than the sum of its proper divisors (16090912087).

71804341865 is a wasteful number, since it uses less digits than its factorization.

71804341865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088296.

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 71804341865 in words is "seventy-one billion, eight hundred four million, three hundred forty-one thousand, eight hundred sixty-five".