4509472506 has 128 divisors (see below), whose sum is σ = 11776720896. Its totient is φ = 1116223680.

The previous prime is 4509472493. The next prime is 4509472507. The reversal of 4509472506 is 6052749054.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (4509472507) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3686611 + ... + 3687833.

It is an arithmetic number, because the mean of its divisors is an integer number (92005632).

Almost surely, 2^4509472506 is an apocalyptic number.

4509472506 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 4509472506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5888360448).

4509472506 is an abundant number, since it is smaller than the sum of its proper divisors (7267248390).

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

4509472506 is a wasteful number, since it uses less digits than its factorization.

4509472506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616.

The product of its (nonzero) digits is 302400, while the sum is 42.

The square root of 4509472506 is about 67152.6060998380. The cubic root of 4509472506 is about 1652.1212394434.

The spelling of 4509472506 in words is "four billion, five hundred nine million, four hundred seventy-two thousand, five hundred six".