12863208969 has 80 divisors (see below), whose sum is σ = 21171205440. Its totient is φ = 7734787200.

The previous prime is 12863208949. The next prime is 12863208971. The reversal of 12863208969 is 96980236821.

It is not a de Polignac number, because 12863208969 - 2⁵ = 12863208937 is a prime.

It is a super-2 number, since 2×12863208969² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12863208929) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 12238494 + ... + 12239544.

It is an arithmetic number, because the mean of its divisors is an integer number (264640068).

Almost surely, 2^12863208969 is an apocalyptic number.

It is an amenable number.

12863208969 is a deficient number, since it is larger than the sum of its proper divisors (8307996471).

12863208969 is a wasteful number, since it uses less digits than its factorization.

12863208969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332 (or 1323 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 12863208969 in words is "twelve billion, eight hundred sixty-three million, two hundred eight thousand, nine hundred sixty-nine".