772589879668 has 12 divisors (see below), whose sum is σ = 1354223594052. Its totient is φ = 385668852800.

The previous prime is 772589879627. The next prime is 772589879669. The reversal of 772589879668 is 866978985277.

It can be written as a sum of positive squares in 2 ways, for example, as 179116861284 + 593473018384 = 423222^2 + 770372^2 .

It is a junction number, because it is equal to n+sod(n) for n = 772589879591 and 772589879600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (772589879669) 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, 156518983 + ... + 156523918.

It is an arithmetic number, because the mean of its divisors is an integer number (112851966171).

Almost surely, 2^772589879668 is an apocalyptic number.

It is an amenable number.

772589879668 is a deficient number, since it is larger than the sum of its proper divisors (581633714384).

772589879668 is a wasteful number, since it uses less digits than its factorization.

772589879668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313043522 (or 313043520 counting only the distinct ones).

The product of its digits is 5120962560, while the sum is 82.

The spelling of 772589879668 in words is "seven hundred seventy-two billion, five hundred eighty-nine million, eight hundred seventy-nine thousand, six hundred sixty-eight".