771230633312129 has 2 divisors, whose sum is σ = 771230633312130. Its totient is φ = 771230633312128.

The previous prime is 771230633312023. The next prime is 771230633312149. The reversal of 771230633312129 is 921213336032177.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 751786590300529 + 19444043011600 = 27418727^2 + 4409540^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-771230633312129 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 (771230633312149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385615316656064 + 385615316656065.

It is an arithmetic number, because the mean of its divisors is an integer number (385615316656065).

Almost surely, 2^{771230633312129} is an apocalyptic number.

It is an amenable number.

771230633312129 is a deficient number, since it is larger than the sum of its proper divisors (1).

771230633312129 is an equidigital number, since it uses as much as digits as its factorization.

771230633312129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1714608, while the sum is 50.

The spelling of 771230633312129 in words is "seven hundred seventy-one trillion, two hundred thirty billion, six hundred thirty-three million, three hundred twelve thousand, one hundred twenty-nine".