869597913573 has 6 divisors (see below), whose sum is σ = 1256085875174. Its totient is φ = 579731942376.

The previous prime is 869597913571. The next prime is 869597913577. The reversal of 869597913573 is 375319795968.

It can be written as a sum of positive squares in only one way, i.e., 661842450369 + 207755463204 = 813537^2 + 455802^2 .

It is not a de Polignac number, because 869597913573 - 2¹ = 869597913571 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869597913571) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48310995190 + ... + 48310995207.

Almost surely, 2^869597913573 is an apocalyptic number.

It is an amenable number.

869597913573 is a deficient number, since it is larger than the sum of its proper divisors (386487961601).

869597913573 is a wasteful number, since it uses less digits than its factorization.

869597913573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96621990403 (or 96621990400 counting only the distinct ones).

The product of its digits is 385786800, while the sum is 72.

The spelling of 869597913573 in words is "eight hundred sixty-nine billion, five hundred ninety-seven million, nine hundred thirteen thousand, five hundred seventy-three".