12880543536 has 560 divisors, whose sum is σ = 47100080640. Its totient is φ = 3334877568.

The previous prime is 12880543531. The next prime is 12880543547. The reversal of 12880543536 is 63534508821.

12880543536 is a `hidden beast` number, since 1 + 28 + 80 + 543 + 5 + 3 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 12880543491 and 12880543500.

It is not an unprimeable number, because it can be changed into a prime (12880543531) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 560023621 + ... + 560023643.

Almost surely, 2^12880543536 is an apocalyptic number.

12880543536 is a gapful number since it is divisible by the number (16) 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 12880543536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23550040320).

12880543536 is an abundant number, since it is smaller than the sum of its proper divisors (34219537104).

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

12880543536 is an frugal number, since it uses more digits than its factorization.

12880543536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 12880543536 in words is "twelve billion, eight hundred eighty million, five hundred forty-three thousand, five hundred thirty-six".