4487665109 has 2 divisors, whose sum is σ = 4487665110. Its totient is φ = 4487665108.

The previous prime is 4487665093. The next prime is 4487665123. The reversal of 4487665109 is 9015667844.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4223700100 + 263965009 = 64990^2 + 16247^2 .

It is a cyclic number.

It is not a de Polignac number, because 4487665109 - 2⁴ = 4487665093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4487665199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2243832554 + 2243832555.

It is an arithmetic number, because the mean of its divisors is an integer number (2243832555).

Almost surely, 2^4487665109 is an apocalyptic number.

It is an amenable number.

4487665109 is a deficient number, since it is larger than the sum of its proper divisors (1).

4487665109 is an equidigital number, since it uses as much as digits as its factorization.

4487665109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 4487665109 is about 66990.0373861666. The cubic root of 4487665109 is about 1649.4537658063.

The spelling of 4487665109 in words is "four billion, four hundred eighty-seven million, six hundred sixty-five thousand, one hundred nine".