76601324331809 has 2 divisors, whose sum is σ = 76601324331810. Its totient is φ = 76601324331808.

The previous prime is 76601324331803. The next prime is 76601324331887. The reversal of 76601324331809 is 90813342310667.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54274943325409 + 22326381006400 = 7367153^2 + 4725080^2 .

It is a cyclic number.

It is not a de Polignac number, because 76601324331809 - 2³⁶ = 76532604855073 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 (76601324331803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38300662165904 + 38300662165905.

It is an arithmetic number, because the mean of its divisors is an integer number (38300662165905).

Almost surely, 2^{76601324331809} is an apocalyptic number.

It is an amenable number.

76601324331809 is a deficient number, since it is larger than the sum of its proper divisors (1).

76601324331809 is an equidigital number, since it uses as much as digits as its factorization.

76601324331809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3919104, while the sum is 53.

The spelling of 76601324331809 in words is "seventy-six trillion, six hundred one billion, three hundred twenty-four million, three hundred thirty-one thousand, eight hundred nine".