770243665979 has 2 divisors, whose sum is σ = 770243665980. Its totient is φ = 770243665978.

The previous prime is 770243665907. The next prime is 770243666053. The reversal of 770243665979 is 979566342077.

It is a weak prime.

It is an emirp because it is prime and its reverse (979566342077) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-770243665979 is a prime.

It is not a weakly prime, because it can be changed into another prime (770243605979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385121832989 + 385121832990.

It is an arithmetic number, because the mean of its divisors is an integer number (385121832990).

Almost surely, 2^770243665979 is an apocalyptic number.

770243665979 is a deficient number, since it is larger than the sum of its proper divisors (1).

770243665979 is an equidigital number, since it uses as much as digits as its factorization.

770243665979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120022560, while the sum is 65.

The spelling of 770243665979 in words is "seven hundred seventy billion, two hundred forty-three million, six hundred sixty-five thousand, nine hundred seventy-nine".