544838669568 has 270 divisors, whose sum is σ = 1725816113406. Its totient is φ = 170927898624.

The previous prime is 544838669567. The next prime is 544838669603. The reversal of 544838669568 is 865966838445.

544838669568 is a `hidden beast` number, since 5 + 4 + 483 + 86 + 6 + 9 + 5 + 68 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 275801428224 + 269037241344 = 525168^2 + 518688^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 544838669496 and 544838669505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544838669567) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 5947246 + ... + 6038162.

Almost surely, 2^544838669568 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 544838669568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (862908056703).

544838669568 is an abundant number, since it is smaller than the sum of its proper divisors (1180977443838).

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

544838669568 is an equidigital number, since it uses as much as digits as its factorization.

544838669568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90979 (or 90939 counting only the distinct ones).

The product of its digits is 1194393600, while the sum is 72.

The spelling of 544838669568 in words is "five hundred forty-four billion, eight hundred thirty-eight million, six hundred sixty-nine thousand, five hundred sixty-eight".