9531216089321 has 8 divisors (see below), whose sum is σ = 9655073541120. Its totient is φ = 9407573483472.

The previous prime is 9531216089221. The next prime is 9531216089401. The reversal of 9531216089321 is 1239806121359.

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

It is a cyclic number.

It is not a de Polignac number, because 9531216089321 - 2³⁴ = 9514036220137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9531216089321.

It is not an unprimeable number, because it can be changed into a prime (9531216089221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53622185 + ... + 53799638.

It is an arithmetic number, because the mean of its divisors is an integer number (1206884192640).

Almost surely, 2^{9531216089321} is an apocalyptic number.

It is an amenable number.

9531216089321 is a deficient number, since it is larger than the sum of its proper divisors (123857451799).

9531216089321 is a wasteful number, since it uses less digits than its factorization.

9531216089321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107422975.

The product of its (nonzero) digits is 699840, while the sum is 50.

The spelling of 9531216089321 in words is "nine trillion, five hundred thirty-one billion, two hundred sixteen million, eighty-nine thousand, three hundred twenty-one".