11745820800 has 384 divisors, whose sum is σ = 49129891200. Its totient is φ = 2684620800.

The previous prime is 11745820783. The next prime is 11745820813. The reversal of 11745820800 is 802854711.

11745820800 is a `hidden beast` number, since 1 + 1 + 74 + 582 + 0 + 8 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

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

It is an unprimeable number.

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, 595090 + ... + 614510.

It is an arithmetic number, because the mean of its divisors is an integer number (127942425).

Almost surely, 2^11745820800 is an apocalyptic number.

11745820800 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 11745820800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24564945600).

11745820800 is an abundant number, since it is smaller than the sum of its proper divisors (37384070400).

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

11745820800 is a wasteful number, since it uses less digits than its factorization.

11745820800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19461 (or 19438 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The spelling of 11745820800 in words is "eleven billion, seven hundred forty-five million, eight hundred twenty thousand, eight hundred".