12054365784 has 128 divisors (see below), whose sum is σ = 34513248000. Its totient is φ = 3896024832.

The previous prime is 12054365767. The next prime is 12054365789. The reversal of 12054365784 is 48756345021.

12054365784 is a `hidden beast` number, since 1 + 20 + 54 + 3 + 6 + 578 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12054365789) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1286364 + ... + 1295700.

It is an arithmetic number, because the mean of its divisors is an integer number (269634750).

Almost surely, 2^12054365784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12054365784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17256624000).

12054365784 is an abundant number, since it is smaller than the sum of its proper divisors (22458882216).

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

12054365784 is a wasteful number, since it uses less digits than its factorization.

12054365784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9534 (or 9524 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 12054365784 in words is "twelve billion, fifty-four million, three hundred sixty-five thousand, seven hundred eighty-four".