12873000000 has 392 divisors, whose sum is σ = 48735626176. Its totient is φ = 2937600000.

The previous prime is 12872999987. The next prime is 12873000001. The reversal of 12873000000 is 37821.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (12873000001) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 20999694 + ... + 21000306.

Almost surely, 2^12873000000 is an apocalyptic number.

12873000000 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 12873000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24367813088).

12873000000 is an abundant number, since it is smaller than the sum of its proper divisors (35862626176).

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

12873000000 is an frugal number, since it uses more digits than its factorization.

12873000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

Adding to 12873000000 its reverse (37821), we get a palindrome (12873037821).

The spelling of 12873000000 in words is "twelve billion, eight hundred seventy-three million", and thus it is an aban number.