12775674426565 has 8 divisors (see below), whose sum is σ = 15338010268440. Its totient is φ = 10215738903552.

The previous prime is 12775674426469. The next prime is 12775674426583. The reversal of 12775674426565 is 56562447657721.

It can be written as a sum of positive squares in 4 ways, for example, as 39954812769 + 12735719613796 = 199887^2 + 3568714^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12775674426565 - 2²³ = 12775666037957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12775674426565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 600068004 + ... + 600089293.

It is an arithmetic number, because the mean of its divisors is an integer number (1917251283555).

Almost surely, 2^{12775674426565} is an apocalyptic number.

It is an amenable number.

12775674426565 is a deficient number, since it is larger than the sum of its proper divisors (2562335841875).

12775674426565 is a wasteful number, since it uses less digits than its factorization.

12775674426565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200159431.

The product of its digits is 592704000, while the sum is 67.

The spelling of 12775674426565 in words is "twelve trillion, seven hundred seventy-five billion, six hundred seventy-four million, four hundred twenty-six thousand, five hundred sixty-five".