4536644544 has 224 divisors, whose sum is σ = 13805245440. Its totient is φ = 1460035584.

The previous prime is 4536644533. The next prime is 4536644569. The reversal of 4536644544 is 4454466354.

4536644544 is a `hidden beast` number, since 4 + 5 + 3 + 66 + 44 + 544 = 666.

It is a super-2 number, since 2×4536644544² = 41162287437209935872, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4536644544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6740592 + ... + 6741264.

It is an arithmetic number, because the mean of its divisors is an integer number (61630560).

Almost surely, 2^4536644544 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 4536644544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6902622720).

4536644544 is an abundant number, since it is smaller than the sum of its proper divisors (9268600896).

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

4536644544 is a wasteful number, since it uses less digits than its factorization.

4536644544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824 (or 808 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 45.

The square root of 4536644544 is about 67354.6178372352. The cubic root of 4536644544 is about 1655.4329081128.

The spelling of 4536644544 in words is "four billion, five hundred thirty-six million, six hundred forty-four thousand, five hundred forty-four".