91110893328 has 180 divisors, whose sum is σ = 315551321280. Its totient is φ = 24029201664.

The previous prime is 91110893323. The next prime is 91110893339. The reversal of 91110893328 is 82339801119.

It is not an unprimeable number, because it can be changed into a prime (91110893323) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 97068 + ... + 437771.

It is an arithmetic number, because the mean of its divisors is an integer number (1753062896).

Almost surely, 2^91110893328 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 91110893328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157775660640).

91110893328 is an abundant number, since it is smaller than the sum of its proper divisors (224440427952).

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

91110893328 is a wasteful number, since it uses less digits than its factorization.

91110893328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534886 (or 534864 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The spelling of 91110893328 in words is "ninety-one billion, one hundred ten million, eight hundred ninety-three thousand, three hundred twenty-eight".