4640017609 has 2 divisors, whose sum is σ = 4640017610. Its totient is φ = 4640017608.

The previous prime is 4640017559. The next prime is 4640017619. The reversal of 4640017609 is 9067100464.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4175744400 + 464273209 = 64620^2 + 21547^2 .

It is a cyclic number.

It is not a de Polignac number, because 4640017609 - 2⁹ = 4640017097 is a prime.

It is not a weakly prime, because it can be changed into another prime (4640017619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2320008804 + 2320008805.

It is an arithmetic number, because the mean of its divisors is an integer number (2320008805).

Almost surely, 2^4640017609 is an apocalyptic number.

It is an amenable number.

4640017609 is a deficient number, since it is larger than the sum of its proper divisors (1).

4640017609 is an equidigital number, since it uses as much as digits as its factorization.

4640017609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 4640017609 is about 68117.6747180935. The cubic root of 4640017609 is about 1667.9122930082.

It can be divided in two parts, 46400 and 17609, that added together give a square (64009 = 253²).

The spelling of 4640017609 in words is "four billion, six hundred forty million, seventeen thousand, six hundred nine".