9109145923680 has 192 divisors, whose sum is σ = 31312747404288. Its totient is φ = 2207543439360.

The previous prime is 9109145923673. The next prime is 9109145923693. The reversal of 9109145923680 is 863295419019.

It is a self number, because there is not a number n which added to its sum of digits gives 9109145923680.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15676092 + ... + 16246788.

It is an arithmetic number, because the mean of its divisors is an integer number (163087226064).

Almost surely, 2^{9109145923680} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9109145923680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15656373702144).

9109145923680 is an abundant number, since it is smaller than the sum of its proper divisors (22203601480608).

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

9109145923680 is a wasteful number, since it uses less digits than its factorization.

9109145923680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573749 (or 573741 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 57.

The spelling of 9109145923680 in words is "nine trillion, one hundred nine billion, one hundred forty-five million, nine hundred twenty-three thousand, six hundred eighty".