11783303280 has 480 divisors, whose sum is σ = 47329970688. Its totient is φ = 2668723200.

The previous prime is 11783303243. The next prime is 11783303291. The reversal of 11783303280 is 8230338711.

11783303280 is a `hidden beast` number, since 1 + 1 + 78 + 3 + 303 + 280 = 666.

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 95 ways as a sum of consecutive naturals, for example, 17826150 + ... + 17826810.

Almost surely, 2^11783303280 is an apocalyptic number.

11783303280 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 11783303280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23664985344).

11783303280 is an abundant number, since it is smaller than the sum of its proper divisors (35546667408).

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

11783303280 is a wasteful number, since it uses less digits than its factorization.

11783303280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827 (or 809 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 11783303280 in words is "eleven billion, seven hundred eighty-three million, three hundred three thousand, two hundred eighty".