8715865871573 has 4 divisors (see below), whose sum is σ = 9960989567520. Its totient is φ = 7470742175628.

The previous prime is 8715865871549. The next prime is 8715865871617. The reversal of 8715865871573 is 3751785685178.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8715865871573 - 2³⁶ = 8647146394837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8715865871497 and 8715865871506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8715865876573) 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, 622561847963 + ... + 622561847976.

It is an arithmetic number, because the mean of its divisors is an integer number (2490247391880).

Almost surely, 2^{8715865871573} is an apocalyptic number.

It is an amenable number.

8715865871573 is a deficient number, since it is larger than the sum of its proper divisors (1245123695947).

8715865871573 is a wasteful number, since it uses less digits than its factorization.

8715865871573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245123695946.

The product of its digits is 395136000, while the sum is 71.

The spelling of 8715865871573 in words is "eight trillion, seven hundred fifteen billion, eight hundred sixty-five million, eight hundred seventy-one thousand, five hundred seventy-three".