11989950600 has 192 divisors, whose sum is σ = 40037437440. Its totient is φ = 2959545600.

The previous prime is 11989950593. The next prime is 11989950607. The reversal of 11989950600 is 605998911.

It is an interprime number because it is at equal distance from previous prime (11989950593) and next prime (11989950607).

It is a self number, because there is not a number n which added to its sum of digits gives 11989950600.

It is not an unprimeable number, because it can be changed into a prime (11989950607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 413787 + ... + 441813.

It is an arithmetic number, because the mean of its divisors is an integer number (208528320).

Almost surely, 2^11989950600 is an apocalyptic number.

11989950600 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 11989950600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20018718720).

11989950600 is an abundant number, since it is smaller than the sum of its proper divisors (28047486840).

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

11989950600 is a wasteful number, since it uses less digits than its factorization.

11989950600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28100 (or 28091 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 48.

The spelling of 11989950600 in words is "eleven billion, nine hundred eighty-nine million, nine hundred fifty thousand, six hundred".