9509966841372 has 12 divisors (see below), whose sum is σ = 22189922629896. Its totient is φ = 3169988947120.

The previous prime is 9509966841367. The next prime is 9509966841469. The reversal of 9509966841372 is 2731486699059.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×9509966841372² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9509966841297 and 9509966841306.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396248618379 + ... + 396248618402.

It is an arithmetic number, because the mean of its divisors is an integer number (1849160219158).

It is a 1-persistent number, because it is pandigital, but 2⋅9509966841372 = 19019933682744 is not.

Almost surely, 2^{9509966841372} is an apocalyptic number.

It is an amenable number.

9509966841372 is an abundant number, since it is smaller than the sum of its proper divisors (12679955788524).

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

9509966841372 is a wasteful number, since it uses less digits than its factorization.

9509966841372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792497236788 (or 792497236786 counting only the distinct ones).

The product of its (nonzero) digits is 176359680, while the sum is 69.

The spelling of 9509966841372 in words is "nine trillion, five hundred nine billion, nine hundred sixty-six million, eight hundred forty-one thousand, three hundred seventy-two".