9720875064534 has 8 divisors (see below), whose sum is σ = 19441750129080. Its totient is φ = 3240291688176.

The previous prime is 9720875064497. The next prime is 9720875064569. The reversal of 9720875064534 is 4354605780279.

9720875064534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

9720875064534 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 810072922039 + ... + 810072922050.

It is an arithmetic number, because the mean of its divisors is an integer number (2430218766135).

Almost surely, 2^{9720875064534} is an apocalyptic number.

9720875064534 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

9720875064534 is a wasteful number, since it uses less digits than its factorization.

9720875064534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620145844094.

The product of its (nonzero) digits is 50803200, while the sum is 60.

The spelling of 9720875064534 in words is "nine trillion, seven hundred twenty billion, eight hundred seventy-five million, sixty-four thousand, five hundred thirty-four".