11811859200 has 648 divisors, whose sum is σ = 45667702080. Its totient is φ = 2903040000.

The previous prime is 11811859193. The next prime is 11811859237. The reversal of 11811859200 is 295811811.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 47059075 + ... + 47059325.

Almost surely, 2^11811859200 is an apocalyptic number.

11811859200 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 11811859200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22833851040).

11811859200 is an abundant number, since it is smaller than the sum of its proper divisors (33855842880).

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

11811859200 is a wasteful number, since it uses less digits than its factorization.

11811859200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 36.

The spelling of 11811859200 in words is "eleven billion, eight hundred eleven million, eight hundred fifty-nine thousand, two hundred".