7665002489 has 2 divisors, whose sum is σ = 7665002490. Its totient is φ = 7665002488.

The previous prime is 7665002479. The next prime is 7665002617. The reversal of 7665002489 is 9842005667.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5648274025 + 2016728464 = 75155^2 + 44908^2 .

It is a cyclic number.

It is not a de Polignac number, because 7665002489 - 2¹⁶ = 7664936953 is a prime.

It is not a weakly prime, because it can be changed into another prime (7665002479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3832501244 + 3832501245.

It is an arithmetic number, because the mean of its divisors is an integer number (3832501245).

Almost surely, 2^7665002489 is an apocalyptic number.

It is an amenable number.

7665002489 is a deficient number, since it is larger than the sum of its proper divisors (1).

7665002489 is an equidigital number, since it uses as much as digits as its factorization.

7665002489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 7665002489 is about 87549.9999371788. Note that the first 4 decimals coincide. The cubic root of 7665002489 is about 1971.6845502638.

The spelling of 7665002489 in words is "seven billion, six hundred sixty-five million, two thousand, four hundred eighty-nine".