91454845904000 has 512 divisors, whose sum is σ = 252082053849600. Its totient is φ = 32871573504000.

The previous prime is 91454845903991. The next prime is 91454845904021. The reversal of 91454845904000 is 40954845419.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 394748195 + ... + 394979805.

It is an arithmetic number, because the mean of its divisors is an integer number (492347761425).

Almost surely, 2^{91454845904000} 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 91454845904000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126041026924800).

91454845904000 is an abundant number, since it is smaller than the sum of its proper divisors (160627207945600).

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

91454845904000 is a wasteful number, since it uses less digits than its factorization.

91454845904000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231729 (or 231707 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 53.

The spelling of 91454845904000 in words is "ninety-one trillion, four hundred fifty-four billion, eight hundred forty-five million, nine hundred four thousand".