91884948480 has 1584 divisors, whose sum is σ = 392701720320. Its totient is φ = 20495794176.

The previous prime is 91884948409. The next prime is 91884948509. The reversal of 91884948480 is 8484948819.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 3994997749 + ... + 3994997771.

Almost surely, 2^91884948480 is an apocalyptic number.

91884948480 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 91884948480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196350860160).

91884948480 is an abundant number, since it is smaller than the sum of its proper divisors (300816771840).

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

91884948480 is a wasteful number, since it uses less digits than its factorization.

91884948480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 21233664, while the sum is 63.

The spelling of 91884948480 in words is "ninety-one billion, eight hundred eighty-four million, nine hundred forty-eight thousand, four hundred eighty".