7664140441 has 2 divisors, whose sum is σ = 7664140442. Its totient is φ = 7664140440.

The previous prime is 7664140423. The next prime is 7664140483. The reversal of 7664140441 is 1440414667.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5464905625 + 2199234816 = 73925^2 + 46896^2 .

It is a cyclic number.

It is not a de Polignac number, because 7664140441 - 2¹⁵ = 7664107673 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7664140441.

It is not a weakly prime, because it can be changed into another prime (7664140541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3832070220 + 3832070221.

It is an arithmetic number, because the mean of its divisors is an integer number (3832070221).

Almost surely, 2^7664140441 is an apocalyptic number.

It is an amenable number.

7664140441 is a deficient number, since it is larger than the sum of its proper divisors (1).

7664140441 is an equidigital number, since it uses as much as digits as its factorization.

7664140441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 7664140441 is about 87545.0766234173. The cubic root of 7664140441 is about 1971.6106320253.

The spelling of 7664140441 in words is "seven billion, six hundred sixty-four million, one hundred forty thousand, four hundred forty-one".