779966023597 has 2 divisors, whose sum is σ = 779966023598. Its totient is φ = 779966023596.

The previous prime is 779966023561. The next prime is 779966023651. The reversal of 779966023597 is 795320669977.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 409351717636 + 370614305961 = 639806^2 + 608781^2 .

It is an emirp because it is prime and its reverse (795320669977) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 779966023597 - 2²⁷ = 779831805869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (779966023547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 389983011798 + 389983011799.

It is an arithmetic number, because the mean of its divisors is an integer number (389983011799).

Almost surely, 2^779966023597 is an apocalyptic number.

It is an amenable number.

779966023597 is a deficient number, since it is larger than the sum of its proper divisors (1).

779966023597 is an equidigital number, since it uses as much as digits as its factorization.

779966023597 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270050760, while the sum is 70.

The spelling of 779966023597 in words is "seven hundred seventy-nine billion, nine hundred sixty-six million, twenty-three thousand, five hundred ninety-seven".