4515605989 has 4 divisors (see below), whose sum is σ = 4600806156. Its totient is φ = 4430405824.

The previous prime is 4515605959. The next prime is 4515605993. The reversal of 4515605989 is 9895065154.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2322276100 + 2193329889 = 48190^2 + 46833^2 .

It is a cyclic number.

It is not a de Polignac number, because 4515605989 - 2⁵ = 4515605957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4515605959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42600004 + ... + 42600109.

It is an arithmetic number, because the mean of its divisors is an integer number (1150201539).

Almost surely, 2^4515605989 is an apocalyptic number.

It is an amenable number.

4515605989 is a deficient number, since it is larger than the sum of its proper divisors (85200167).

4515605989 is an equidigital number, since it uses as much as digits as its factorization.

4515605989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85200166.

The product of its (nonzero) digits is 1944000, while the sum is 52.

The square root of 4515605989 is about 67198.2588241689. The cubic root of 4515605989 is about 1652.8699350538.

The spelling of 4515605989 in words is "four billion, five hundred fifteen million, six hundred five thousand, nine hundred eighty-nine".