12906239000 has 64 divisors (see below), whose sum is σ = 30327523200. Its totient is φ = 5140800000.

The previous prime is 12906238991. The next prime is 12906239009. The reversal of 12906239000 is 93260921.

It is an interprime number because it is at equal distance from previous prime (12906238991) and next prime (12906239009).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12906239009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212000 + ... + 266000.

It is an arithmetic number, because the mean of its divisors is an integer number (473867550).

Almost surely, 2^12906239000 is an apocalyptic number.

12906239000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12906239000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15163761600).

12906239000 is an abundant number, since it is smaller than the sum of its proper divisors (17421284200).

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

12906239000 is a wasteful number, since it uses less digits than its factorization.

12906239000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54261 (or 54247 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 32.

Adding to 12906239000 its reverse (93260921), we get a palindrome (12999499921).

The spelling of 12906239000 in words is "twelve billion, nine hundred six million, two hundred thirty-nine thousand".