770478516673 has 2 divisors, whose sum is σ = 770478516674. Its totient is φ = 770478516672.

The previous prime is 770478516649. The next prime is 770478516697. The reversal of 770478516673 is 376615874077.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (770478516649) and next prime (770478516697).

It can be written as a sum of positive squares in only one way, i.e., 476967034384 + 293511482289 = 690628^2 + 541767^2 .

It is an emirp because it is prime and its reverse (376615874077) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-770478516673 is a prime.

It is not a weakly prime, because it can be changed into another prime (770478526673) 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, 385239258336 + 385239258337.

It is an arithmetic number, because the mean of its divisors is an integer number (385239258337).

Almost surely, 2^770478516673 is an apocalyptic number.

It is an amenable number.

770478516673 is a deficient number, since it is larger than the sum of its proper divisors (1).

770478516673 is an equidigital number, since it uses as much as digits as its factorization.

770478516673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41489280, while the sum is 61.

The spelling of 770478516673 in words is "seven hundred seventy billion, four hundred seventy-eight million, five hundred sixteen thousand, six hundred seventy-three".