871732917563 has 4 divisors (see below), whose sum is σ = 871745099808. Its totient is φ = 871720735320.

The previous prime is 871732917509. The next prime is 871732917571. The reversal of 871732917563 is 365719237178.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 365719237178 = 2 ⋅182859618589.

It is a cyclic number.

It is not a de Polignac number, because 871732917563 - 2¹⁸ = 871732655419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (871732917463) 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, 5983148 + ... + 6127113.

It is an arithmetic number, because the mean of its divisors is an integer number (217936274952).

Almost surely, 2^871732917563 is an apocalyptic number.

871732917563 is a deficient number, since it is larger than the sum of its proper divisors (12182245).

871732917563 is a wasteful number, since it uses less digits than its factorization.

871732917563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12182244.

The product of its digits is 13335840, while the sum is 59.

The spelling of 871732917563 in words is "eight hundred seventy-one billion, seven hundred thirty-two million, nine hundred seventeen thousand, five hundred sixty-three".