4561539072 has 208 divisors, whose sum is σ = 12715053120. Its totient is φ = 1453326336.

The previous prime is 4561539049. The next prime is 4561539077. The reversal of 4561539072 is 2709351654.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4561539077) 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, 47026128 + ... + 47026224.

Almost surely, 2^4561539072 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 4561539072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6357526560).

4561539072 is an abundant number, since it is smaller than the sum of its proper divisors (8153514048).

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

4561539072 is an equidigital number, since it uses as much as digits as its factorization.

4561539072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 42.

The square root of 4561539072 is about 67539.1669477793. The cubic root of 4561539072 is about 1658.4554113599.

The spelling of 4561539072 in words is "four billion, five hundred sixty-one million, five hundred thirty-nine thousand, seventy-two".