4512072509 has 16 divisors (see below), whose sum is σ = 5298496896. Its totient is φ = 3761683200.

The previous prime is 4512072497. The next prime is 4512072547. The reversal of 4512072509 is 9052702154.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4512072509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4512062509) 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, 71249 + ... + 118745.

It is an arithmetic number, because the mean of its divisors is an integer number (331156056).

Almost surely, 2^4512072509 is an apocalyptic number.

It is an amenable number.

4512072509 is a deficient number, since it is larger than the sum of its proper divisors (786424387).

4512072509 is a wasteful number, since it uses less digits than its factorization.

4512072509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47876.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 4512072509 is about 67171.9622238326. The cubic root of 4512072509 is about 1652.4386967431.

The spelling of 4512072509 in words is "four billion, five hundred twelve million, seventy-two thousand, five hundred nine".