12856536306 has 12 divisors (see below), whose sum is σ = 27855828702. Its totient is φ = 4285512096.

The previous prime is 12856536299. The next prime is 12856536317. The reversal of 12856536306 is 60363565821.

12856536306 is a `hidden beast` number, since 1 + 2 + 8 + 5 + 6 + 5 + 3 + 630 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10790015625 + 2066520681 = 103875^2 + 45459^2 .

It is a super-2 number, since 2×12856536306² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 357125991 + ... + 357126026.

Almost surely, 2^12856536306 is an apocalyptic number.

12856536306 is an abundant number, since it is smaller than the sum of its proper divisors (14999292396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12856536306 is a wasteful number, since it uses less digits than its factorization.

12856536306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714252025 (or 714252022 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 12856536306 in words is "twelve billion, eight hundred fifty-six million, five hundred thirty-six thousand, three hundred six".