779965932769 has 2 divisors, whose sum is σ = 779965932770. Its totient is φ = 779965932768.

The previous prime is 779965932737. The next prime is 779965932803. The reversal of 779965932769 is 967239569977.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 460443673600 + 319522259169 = 678560^2 + 565263^2 .

It is an emirp because it is prime and its reverse (967239569977) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 779965932769 - 2⁵ = 779965932737 is a prime.

It is a super-2 number, since 2×779965932769² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (779965912769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 389982966384 + 389982966385.

It is an arithmetic number, because the mean of its divisors is an integer number (389982966385).

Almost surely, 2^779965932769 is an apocalyptic number.

It is an amenable number.

779965932769 is a deficient number, since it is larger than the sum of its proper divisors (1).

779965932769 is an equidigital number, since it uses as much as digits as its factorization.

779965932769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2430456840, while the sum is 79.

The spelling of 779965932769 in words is "seven hundred seventy-nine billion, nine hundred sixty-five million, nine hundred thirty-two thousand, seven hundred sixty-nine".