4064644613 has 2 divisors, whose sum is σ = 4064644614. Its totient is φ = 4064644612.

The previous prime is 4064644589. The next prime is 4064644621. The reversal of 4064644613 is 3164464604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3569226049 + 495418564 = 59743^2 + 22258^2 .

It is a cyclic number.

It is not a de Polignac number, because 4064644613 - 2⁸ = 4064644357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4064644513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2032322306 + 2032322307.

It is an arithmetic number, because the mean of its divisors is an integer number (2032322307).

Almost surely, 2^4064644613 is an apocalyptic number.

It is an amenable number.

4064644613 is a deficient number, since it is larger than the sum of its proper divisors (1).

4064644613 is an equidigital number, since it uses as much as digits as its factorization.

4064644613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 38.

The square root of 4064644613 is about 63754.5654286813. The cubic root of 4064644613 is about 1595.9068048431.

Subtracting from 4064644613 its reverse (3164464604), we obtain a square (900180009 = 30003²).

The spelling of 4064644613 in words is "four billion, sixty-four million, six hundred forty-four thousand, six hundred thirteen".