770642432129 has 2 divisors, whose sum is σ = 770642432130. Its totient is φ = 770642432128.

The previous prime is 770642432099. The next prime is 770642432179. The reversal of 770642432129 is 921234246077.

770642432129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 676407553600 + 94234878529 = 822440^2 + 306977^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-770642432129 is a prime.

It is not a weakly prime, because it can be changed into another prime (770642432179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385321216064 + 385321216065.

It is an arithmetic number, because the mean of its divisors is an integer number (385321216065).

Almost surely, 2^770642432129 is an apocalyptic number.

It is an amenable number.

770642432129 is a deficient number, since it is larger than the sum of its proper divisors (1).

770642432129 is an equidigital number, since it uses as much as digits as its factorization.

770642432129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 47.

The spelling of 770642432129 in words is "seven hundred seventy billion, six hundred forty-two million, four hundred thirty-two thousand, one hundred twenty-nine".