91456854330240 has 1792 divisors, whose sum is σ = 411508561075200. Its totient is φ = 18942843617280.

The previous prime is 91456854330223. The next prime is 91456854330269. The reversal of 91456854330240 is 4203345865419.

It is a happy number.

91456854330240 is a `hidden beast` number, since 9 + 1 + 4 + 5 + 68 + 5 + 4 + 330 + 240 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 1427175000 + ... + 1427239080.

Almost surely, 2^{91456854330240} is an apocalyptic number.

91456854330240 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91456854330240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205754280537600).

91456854330240 is an abundant number, since it is smaller than the sum of its proper divisors (320051706744960).

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

91456854330240 is a wasteful number, since it uses less digits than its factorization.

91456854330240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64167 (or 64140 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 54.

The spelling of 91456854330240 in words is "ninety-one trillion, four hundred fifty-six billion, eight hundred fifty-four million, three hundred thirty thousand, two hundred forty".