8944556544 has 400 divisors, whose sum is σ = 33296636736. Its totient is φ = 2322432000.

The previous prime is 8944556521. The next prime is 8944556557. The reversal of 8944556544 is 4456554498.

It is a happy number.

8944556544 is a `hidden beast` number, since 8 + 9 + 4 + 45 + 56 + 544 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3191944 + ... + 3194744.

Almost surely, 2^8944556544 is an apocalyptic number.

8944556544 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 8944556544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16648318368).

8944556544 is an abundant number, since it is smaller than the sum of its proper divisors (24352080192).

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

8944556544 is a wasteful number, since it uses less digits than its factorization.

8944556544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2849 (or 2824 counting only the distinct ones).

The product of its digits is 13824000, while the sum is 54.

The square root of 8944556544 is about 94575.6657074112. The cubic root of 8944556544 is about 2075.8036501122.

The spelling of 8944556544 in words is "eight billion, nine hundred forty-four million, five hundred fifty-six thousand, five hundred forty-four".