1280813856596 has 12 divisors (see below), whose sum is σ = 2296093133460. Its totient is φ = 624787247040.

The previous prime is 1280813856383. The next prime is 1280813856601. The reversal of 1280813856596 is 6956583180821.

It can be written as a sum of positive squares in 2 ways, for example, as 47692444996 + 1233121411600 = 218386^2 + 1110460^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3904920131 + ... + 3904920458.

It is an arithmetic number, because the mean of its divisors is an integer number (191341094455).

Almost surely, 2^{1280813856596} is an apocalyptic number.

It is an amenable number.

1280813856596 is a deficient number, since it is larger than the sum of its proper divisors (1015279276864).

1280813856596 is a wasteful number, since it uses less digits than its factorization.

1280813856596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7809840634 (or 7809840632 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 62.

The spelling of 1280813856596 in words is "one trillion, two hundred eighty billion, eight hundred thirteen million, eight hundred fifty-six thousand, five hundred ninety-six".