12880409886 has 24 divisors (see below), whose sum is σ = 28941168984. Its totient is φ = 4293469800.

The previous prime is 12880409819. The next prime is 12880409887. The reversal of 12880409886 is 68890408821.

12880409886 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12880409887) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13250965 + ... + 13251936.

It is an arithmetic number, because the mean of its divisors is an integer number (1205882041).

Almost surely, 2^12880409886 is an apocalyptic number.

12880409886 is an abundant number, since it is smaller than the sum of its proper divisors (16060759098).

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

12880409886 is an equidigital number, since it uses as much as digits as its factorization.

12880409886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26502918 (or 26502906 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 54.

The spelling of 12880409886 in words is "twelve billion, eight hundred eighty million, four hundred nine thousand, eight hundred eighty-six".