9578500216768 has 42 divisors (see below), whose sum is σ = 21722818696008. Its totient is φ = 4105043447040.

The previous prime is 9578500216721. The next prime is 9578500216777. The reversal of 9578500216768 is 8676120058759.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65433898 + ... + 65580118.

Almost surely, 2^{9578500216768} is an apocalyptic number.

It is an amenable number.

9578500216768 is an abundant number, since it is smaller than the sum of its proper divisors (12144318479240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9578500216768 is an frugal number, since it uses more digits than its factorization.

9578500216768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292461 (or 146230 counting only the distinct ones).

The product of its (nonzero) digits is 50803200, while the sum is 64.

The spelling of 9578500216768 in words is "nine trillion, five hundred seventy-eight billion, five hundred million, two hundred sixteen thousand, seven hundred sixty-eight".