12289232808 has 48 divisors (see below), whose sum is σ = 33311990400. Its totient is φ = 4092884640.

The previous prime is 12289232783. The next prime is 12289232831. The reversal of 12289232808 is 80823298221.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11433 + ... + 157191.

It is an arithmetic number, because the mean of its divisors is an integer number (693999800).

Almost surely, 2^12289232808 is an apocalyptic number.

12289232808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12289232808 is an abundant number, since it is smaller than the sum of its proper divisors (21022757592).

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

12289232808 is a wasteful number, since it uses less digits than its factorization.

12289232808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146942 (or 146935 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The spelling of 12289232808 in words is "twelve billion, two hundred eighty-nine million, two hundred thirty-two thousand, eight hundred eight".