1118680280448 has 128 divisors (see below), whose sum is σ = 3014319536640. Its totient is φ = 367522713600.

The previous prime is 1118680280423. The next prime is 1118680280461. The reversal of 1118680280448 is 8440820868111.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 1118680280448.

It is a congruent number.

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, 134598213 + ... + 134606523.

It is an arithmetic number, because the mean of its divisors is an integer number (23549371380).

Almost surely, 2^{1118680280448} 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 1118680280448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1507159768320).

1118680280448 is an abundant number, since it is smaller than the sum of its proper divisors (1895639256192).

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

1118680280448 is an equidigital number, since it uses as much as digits as its factorization.

1118680280448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13336 (or 13324 counting only the distinct ones).

The product of its (nonzero) digits is 786432, while the sum is 51.

The spelling of 1118680280448 in words is "one trillion, one hundred eighteen billion, six hundred eighty million, two hundred eighty thousand, four hundred forty-eight".