4539634944 has 144 divisors (see below), whose sum is σ = 13460966400. Its totient is φ = 1348558848.

The previous prime is 4539634927. The next prime is 4539634949. The reversal of 4539634944 is 4494369354.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4539634949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281697 + ... + 297375.

Almost surely, 2^4539634944 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 4539634944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6730483200).

4539634944 is an abundant number, since it is smaller than the sum of its proper divisors (8921331456).

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

4539634944 is a wasteful number, since it uses less digits than its factorization.

4539634944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15740 (or 15726 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 51.

The square root of 4539634944 is about 67376.8131036190. The cubic root of 4539634944 is about 1655.7965630275.

The spelling of 4539634944 in words is "four billion, five hundred thirty-nine million, six hundred thirty-four thousand, nine hundred forty-four".