11400189450 has 96 divisors (see below), whose sum is σ = 30963643200. Its totient is φ = 2758609920.

The previous prime is 11400189421. The next prime is 11400189461. The reversal of 11400189450 is 5498100411.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65506 + ... + 164594.

It is an arithmetic number, because the mean of its divisors is an integer number (322537950).

Almost surely, 2^11400189450 is an apocalyptic number.

11400189450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11400189450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15481821600).

11400189450 is an abundant number, since it is smaller than the sum of its proper divisors (19563453750).

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

11400189450 is a wasteful number, since it uses less digits than its factorization.

11400189450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99176 (or 99171 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 33.

Adding to 11400189450 its reverse (5498100411), we get a palindrome (16898289861).

The spelling of 11400189450 in words is "eleven billion, four hundred million, one hundred eighty-nine thousand, four hundred fifty".