779828220359 has 4 divisors (see below), whose sum is σ = 780147693600. Its totient is φ = 779508747120.

The previous prime is 779828220343. The next prime is 779828220383. The reversal of 779828220359 is 953022828977.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 953022828977 = 107 ⋅8906755411.

It is a cyclic number.

It is not a de Polignac number, because 779828220359 - 2⁴ = 779828220343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (779828250359) 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 in 3 ways as a sum of consecutive naturals, for example, 159732959 + ... + 159737840.

It is an arithmetic number, because the mean of its divisors is an integer number (195036923400).

Almost surely, 2^779828220359 is an apocalyptic number.

779828220359 is a deficient number, since it is larger than the sum of its proper divisors (319473241).

779828220359 is a wasteful number, since it uses less digits than its factorization.

779828220359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319473240.

The product of its (nonzero) digits is 30481920, while the sum is 62.

The spelling of 779828220359 in words is "seven hundred seventy-nine billion, eight hundred twenty-eight million, two hundred twenty thousand, three hundred fifty-nine".