1118284819100 has 72 divisors (see below), whose sum is σ = 2483472380928. Its totient is φ = 436847947200.

The previous prime is 1118284819061. The next prime is 1118284819109. The reversal of 1118284819100 is 19184828111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118284819109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39076997 + ... + 39105603.

Almost surely, 2^{1118284819100} is an apocalyptic number.

1118284819100 is a gapful number since it is divisible by the number (10) 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 1118284819100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1241736190464).

1118284819100 is an abundant number, since it is smaller than the sum of its proper divisors (1365187561828).

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

1118284819100 is a wasteful number, since it uses less digits than its factorization.

1118284819100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37755 (or 37748 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 44.

The spelling of 1118284819100 in words is "one trillion, one hundred eighteen billion, two hundred eighty-four million, eight hundred nineteen thousand, one hundred".