4521736064 has 48 divisors (see below), whose sum is σ = 9100845960. Its totient is φ = 2237836800.

The previous prime is 4521736061. The next prime is 4521736091. The reversal of 4521736064 is 4606371254.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4521736061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1303997 + ... + 1307459.

Almost surely, 2^4521736064 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 4521736064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4550422980).

4521736064 is an abundant number, since it is smaller than the sum of its proper divisors (4579109896).

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

4521736064 is an equidigital number, since it uses as much as digits as its factorization.

4521736064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3679 (or 3566 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 4521736064 is about 67243.8552136922. The cubic root of 4521736064 is about 1653.6175375693.

The spelling of 4521736064 in words is "four billion, five hundred twenty-one million, seven hundred thirty-six thousand, sixty-four".