76534307009 has 2 divisors, whose sum is σ = 76534307010. Its totient is φ = 76534307008.

The previous prime is 76534306997. The next prime is 76534307023. The reversal of 76534307009 is 90070343567.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57538576384 + 18995730625 = 239872^2 + 137825^2 .

It is an emirp because it is prime and its reverse (90070343567) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76534307009 - 2²⁸ = 76265871553 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (76534307039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38267153504 + 38267153505.

It is an arithmetic number, because the mean of its divisors is an integer number (38267153505).

Almost surely, 2^76534307009 is an apocalyptic number.

It is an amenable number.

76534307009 is a deficient number, since it is larger than the sum of its proper divisors (1).

76534307009 is an equidigital number, since it uses as much as digits as its factorization.

76534307009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 476280, while the sum is 44.

The spelling of 76534307009 in words is "seventy-six billion, five hundred thirty-four million, three hundred seven thousand, nine".