871705454609 has 8 divisors (see below), whose sum is σ = 974145342240. Its totient is φ = 773131223200.

The previous prime is 871705454573. The next prime is 871705454621. The reversal of 871705454609 is 906454507178.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-871705454609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (871705454689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 966413579 + ... + 966414480.

It is an arithmetic number, because the mean of its divisors is an integer number (121768167780).

Almost surely, 2^871705454609 is an apocalyptic number.

It is an amenable number.

871705454609 is a deficient number, since it is larger than the sum of its proper divisors (102439887631).

871705454609 is a wasteful number, since it uses less digits than its factorization.

871705454609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1932828111.

The product of its (nonzero) digits is 8467200, while the sum is 56.

The spelling of 871705454609 in words is "eight hundred seventy-one billion, seven hundred five million, four hundred fifty-four thousand, six hundred nine".