91380239808000 has 5120 divisors, whose sum is σ = 402599311994880. Its totient is φ = 18034458624000.

The previous prime is 91380239807981. The next prime is 91380239808023. The reversal of 91380239808000 is 80893208319.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 511 ways as a sum of consecutive naturals, for example, 582039743922 + ... + 582039744078.

It is an arithmetic number, because the mean of its divisors is an integer number (78632678124).

Almost surely, 2^{91380239808000} 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 91380239808000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201299655997440).

91380239808000 is an abundant number, since it is smaller than the sum of its proper divisors (311219072186880).

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

91380239808000 is a wasteful number, since it uses less digits than its factorization.

91380239808000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306 (or 280 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 51.

The spelling of 91380239808000 in words is "ninety-one trillion, three hundred eighty billion, two hundred thirty-nine million, eight hundred eight thousand".