91390741522080 has 4608 divisors, whose sum is σ = 422707009536000. Its totient is φ = 16444955197440.

The previous prime is 91390741522039. The next prime is 91390741522081. The reversal of 91390741522080 is 8022514709319.

It is not an unprimeable number, because it can be changed into a prime (91390741522081) by changing a digit.

It is a polite number, since it can be written in 767 ways as a sum of consecutive naturals, for example, 399086207406 + ... + 399086207634.

It is an arithmetic number, because the mean of its divisors is an integer number (91733292000).

Almost surely, 2^{91390741522080} 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 91390741522080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211353504768000).

91390741522080 is an abundant number, since it is smaller than the sum of its proper divisors (331316268013920).

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

91390741522080 is a wasteful number, since it uses less digits than its factorization.

91390741522080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393 (or 360 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 91390741522080 in words is "ninety-one trillion, three hundred ninety billion, seven hundred forty-one million, five hundred twenty-two thousand, eighty".