11500797984 has 96 divisors (see below), whose sum is σ = 32652232704. Its totient is φ = 3523430400.

The previous prime is 11500797977. The next prime is 11500798019. The reversal of 11500797984 is 48979700511.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271009 + ... + 310559.

It is an arithmetic number, because the mean of its divisors is an integer number (340127424).

Almost surely, 2^11500797984 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 11500797984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16326116352).

11500797984 is an abundant number, since it is smaller than the sum of its proper divisors (21151434720).

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

11500797984 is a wasteful number, since it uses less digits than its factorization.

11500797984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39810 (or 39802 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 51.

The spelling of 11500797984 in words is "eleven billion, five hundred million, seven hundred ninety-seven thousand, nine hundred eighty-four".