4512720839 has 24 divisors (see below), whose sum is σ = 5341033728. Its totient is φ = 3778874240.

The previous prime is 4512720829. The next prime is 4512720853. The reversal of 4512720839 is 9380272154.

It is a de Polignac number, because none of the positive numbers 2^k-4512720839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4512720796 and 4512720805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4512720829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 134312 + ... + 164514.

It is an arithmetic number, because the mean of its divisors is an integer number (222543072).

Almost surely, 2^4512720839 is an apocalyptic number.

4512720839 is a deficient number, since it is larger than the sum of its proper divisors (828312889).

4512720839 is a wasteful number, since it uses less digits than its factorization.

4512720839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30295 (or 30278 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 4512720839 is about 67176.7879479214. The cubic root of 4512720839 is about 1652.5178380742.

The spelling of 4512720839 in words is "four billion, five hundred twelve million, seven hundred twenty thousand, eight hundred thirty-nine".