12788143280 has 80 divisors (see below), whose sum is σ = 32756751648. Its totient is φ = 4604160000.

The previous prime is 12788143261. The next prime is 12788143289. The reversal of 12788143280 is 8234188721.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (12788143289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16940 + ... + 160820.

Almost surely, 2^12788143280 is an apocalyptic number.

12788143280 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 12788143280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16378375824).

12788143280 is an abundant number, since it is smaller than the sum of its proper divisors (19968608368).

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

12788143280 is a wasteful number, since it uses less digits than its factorization.

12788143280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144006 (or 144000 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 44.

The spelling of 12788143280 in words is "twelve billion, seven hundred eighty-eight million, one hundred forty-three thousand, two hundred eighty".