12051774720 has 216 divisors, whose sum is σ = 41788402656. Its totient is φ = 3206836224.

The previous prime is 12051774719. The next prime is 12051774817. The reversal of 12051774720 is 2747715021.

12051774720 is a `hidden beast` number, since 1 + 2 + 0 + 517 + 74 + 72 + 0 = 666.

12051774720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7406547 + ... + 7408173.

Almost surely, 2^12051774720 is an apocalyptic number.

12051774720 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 12051774720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20894201328).

12051774720 is an abundant number, since it is smaller than the sum of its proper divisors (29736627936).

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

12051774720 is a wasteful number, since it uses less digits than its factorization.

12051774720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2297 (or 2280 counting only the distinct ones).

The product of its (nonzero) digits is 27440, while the sum is 36.

The spelling of 12051774720 in words is "twelve billion, fifty-one million, seven hundred seventy-four thousand, seven hundred twenty".