8556274944 has 432 divisors, whose sum is σ = 29909443200. Its totient is φ = 2438553600.

The previous prime is 8556274829. The next prime is 8556274949. The reversal of 8556274944 is 4494726558.

8556274944 is a `hidden beast` number, since 8 + 5 + 5 + 627 + 4 + 9 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (432).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8556274949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21337144 + ... + 21337544.

Almost surely, 2^8556274944 is an apocalyptic number.

8556274944 is a gapful number since it is divisible by the number (84) 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 8556274944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14954721600).

8556274944 is an abundant number, since it is smaller than the sum of its proper divisors (21353168256).

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

8556274944 is an frugal number, since it uses more digits than its factorization.

8556274944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453 (or 413 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 54.

The square root of 8556274944 is about 92500.1348323342. The cubic root of 8556274944 is about 2045.3214698588.

The spelling of 8556274944 in words is "eight billion, five hundred fifty-six million, two hundred seventy-four thousand, nine hundred forty-four".