4318640872 has 288 divisors, whose sum is σ = 11115273600. Its totient is φ = 1562416128.

The previous prime is 4318640857. The next prime is 4318640873. The reversal of 4318640872 is 2780468134.

It is not an unprimeable number, because it can be changed into a prime (4318640873) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 59159428 + ... + 59159500.

It is an arithmetic number, because the mean of its divisors is an integer number (38594700).

Almost surely, 2^4318640872 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 4318640872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5557636800).

4318640872 is an abundant number, since it is smaller than the sum of its proper divisors (6796632728).

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

4318640872 is a wasteful number, since it uses less digits than its factorization.

4318640872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 43.

The square root of 4318640872 is about 65716.3668502756. The cubic root of 4318640872 is about 1628.4797538482.

The spelling of 4318640872 in words is "four billion, three hundred eighteen million, six hundred forty thousand, eight hundred seventy-two".