11780084213128 has 128 divisors (see below), whose sum is σ = 29205006554880. Its totient is φ = 4312660746240.

The previous prime is 11780084213083. The next prime is 11780084213141. The reversal of 11780084213128 is 82131248008711.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5549626 + ... + 7372822.

It is an arithmetic number, because the mean of its divisors is an integer number (228164113710).

Almost surely, 2^{11780084213128} 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 11780084213128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14602503277440).

11780084213128 is an abundant number, since it is smaller than the sum of its proper divisors (17424922341752).

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

11780084213128 is a wasteful number, since it uses less digits than its factorization.

11780084213128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1823855 (or 1823851 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 46.

The spelling of 11780084213128 in words is "eleven trillion, seven hundred eighty billion, eighty-four million, two hundred thirteen thousand, one hundred twenty-eight".