6143788728 has 384 divisors, whose sum is σ = 21699325440. Its totient is φ = 1524096000.

The previous prime is 6143788709. The next prime is 6143788751. The reversal of 6143788728 is 8278873416.

It is a happy number.

6143788728 is a `hidden beast` number, since 61 + 437 + 88 + 72 + 8 = 666.

It is a super-2 number, since 2×6143788728² = 75492279868599715968, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

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 95 ways as a sum of consecutive naturals, for example, 12512563 + ... + 12513053.

It is an arithmetic number, because the mean of its divisors is an integer number (56508660).

Almost surely, 2^6143788728 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 6143788728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10849662720).

6143788728 is an abundant number, since it is smaller than the sum of its proper divisors (15555536712).

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

6143788728 is a wasteful number, since it uses less digits than its factorization.

6143788728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619 (or 612 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 54.

The square root of 6143788728 is about 78382.3240788381. The cubic root of 6143788728 is about 1831.5217942624.

The spelling of 6143788728 in words is "six billion, one hundred forty-three million, seven hundred eighty-eight thousand, seven hundred twenty-eight".