7665053989 has 2 divisors, whose sum is σ = 7665053990. Its totient is φ = 7665053988.

The previous prime is 7665053987. The next prime is 7665054013. The reversal of 7665053989 is 9893505667.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5863730625 + 1801323364 = 76575^2 + 42442^2 .

It is a cyclic number.

It is not a de Polignac number, because 7665053989 - 2¹ = 7665053987 is a prime.

Together with 7665053987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7665053987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3832526994 + 3832526995.

It is an arithmetic number, because the mean of its divisors is an integer number (3832526995).

Almost surely, 2^7665053989 is an apocalyptic number.

It is an amenable number.

7665053989 is a deficient number, since it is larger than the sum of its proper divisors (1).

7665053989 is an equidigital number, since it uses as much as digits as its factorization.

7665053989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12247200, while the sum is 58.

The square root of 7665053989 is about 87550.2940543320. The cubic root of 7665053989 is about 1971.6889660713.

The spelling of 7665053989 in words is "seven billion, six hundred sixty-five million, fifty-three thousand, nine hundred eighty-nine".