12863326536 has 48 divisors (see below), whose sum is σ = 36039498300. Its totient is φ = 4139920512.

The previous prime is 12863326529. The next prime is 12863326537. The reversal of 12863326536 is 63562336821.

12863326536 is a `hidden beast` number, since 1 + 2 + 8 + 633 + 2 + 6 + 5 + 3 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11662704036 + 1200622500 = 107994^2 + 34650^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12863326491 and 12863326500.

It is not an unprimeable number, because it can be changed into a prime (12863326537) 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 11 ways as a sum of consecutive naturals, for example, 3078211 + ... + 3082386.

Almost surely, 2^12863326536 is an apocalyptic number.

It is an amenable number.

12863326536 is an abundant number, since it is smaller than the sum of its proper divisors (23176171764).

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

12863326536 is a wasteful number, since it uses less digits than its factorization.

12863326536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6160638 (or 6160631 counting only the distinct ones).

The product of its digits is 933120, while the sum is 45.

The spelling of 12863326536 in words is "twelve billion, eight hundred sixty-three million, three hundred twenty-six thousand, five hundred thirty-six".