12289232852 has 24 divisors (see below), whose sum is σ = 23420716200. Its totient is φ = 5608221696.

The previous prime is 12289232831. The next prime is 12289232863. The reversal of 12289232852 is 25823298221.

It can be written as a sum of positive squares in 4 ways, for example, as 75446596 + 12213786256 = 8686^2 + 110516^2 .

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, 1323077 + ... + 1332332.

It is an arithmetic number, because the mean of its divisors is an integer number (975863175).

Almost surely, 2^12289232852 is an apocalyptic number.

It is an amenable number.

12289232852 is a deficient number, since it is larger than the sum of its proper divisors (11131483348).

12289232852 is a wasteful number, since it uses less digits than its factorization.

12289232852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2655515 (or 2655513 counting only the distinct ones).

The product of its digits is 276480, while the sum is 44.

The spelling of 12289232852 in words is "twelve billion, two hundred eighty-nine million, two hundred thirty-two thousand, eight hundred fifty-two".