11912947200 has 1440 divisors, whose sum is σ = 56992066560. Its totient is φ = 2300313600.

The previous prime is 11912947177. The next prime is 11912947213. The reversal of 11912947200 is 274921911.

It is a tau number, because it is divible by the number of its divisors (1440).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 150796761 + ... + 150796839.

It is an arithmetic number, because the mean of its divisors is an integer number (39577824).

Almost surely, 2^11912947200 is an apocalyptic number.

11912947200 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 11912947200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28496033280).

11912947200 is an abundant number, since it is smaller than the sum of its proper divisors (45079119360).

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

11912947200 is a wasteful number, since it uses less digits than its factorization.

11912947200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The spelling of 11912947200 in words is "eleven billion, nine hundred twelve million, nine hundred forty-seven thousand, two hundred".