4527809009 has 2 divisors, whose sum is σ = 4527809010. Its totient is φ = 4527809008.

The previous prime is 4527808981. The next prime is 4527809021. The reversal of 4527809009 is 9009087254.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4131918400 + 395890609 = 64280^2 + 19897^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4527809009 is a prime.

It is not a weakly prime, because it can be changed into another prime (4527869009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2263904504 + 2263904505.

It is an arithmetic number, because the mean of its divisors is an integer number (2263904505).

Almost surely, 2^4527809009 is an apocalyptic number.

It is an amenable number.

4527809009 is a deficient number, since it is larger than the sum of its proper divisors (1).

4527809009 is an equidigital number, since it uses as much as digits as its factorization.

4527809009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 4527809009 is about 67288.9961955148. The cubic root of 4527809009 is about 1654.3575067436.

The spelling of 4527809009 in words is "four billion, five hundred twenty-seven million, eight hundred nine thousand, nine".