12389250000 has 140 divisors (see below), whose sum is σ = 40008862880. Its totient is φ = 3303600000.

The previous prime is 12389249959. The next prime is 12389250007. The reversal of 12389250000 is 5298321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 12389250000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12389250007) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 741741 + ... + 758259.

It is an arithmetic number, because the mean of its divisors is an integer number (285777592).

Almost surely, 2^12389250000 is an apocalyptic number.

12389250000 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 12389250000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20004431440).

12389250000 is an abundant number, since it is smaller than the sum of its proper divisors (27619612880).

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

12389250000 is an frugal number, since it uses more digits than its factorization.

12389250000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16560 (or 16529 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The spelling of 12389250000 in words is "twelve billion, three hundred eighty-nine million, two hundred fifty thousand".