12878611100 has 18 divisors (see below), whose sum is σ = 27946586304. Its totient is φ = 5151444400.

The previous prime is 12878611093. The next prime is 12878611111. The reversal of 12878611100 is 111687821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64392956 + ... + 64393155.

It is an arithmetic number, because the mean of its divisors is an integer number (1552588128).

Almost surely, 2^12878611100 is an apocalyptic number.

12878611100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12878611100 is an abundant number, since it is smaller than the sum of its proper divisors (15067975204).

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

12878611100 is a wasteful number, since it uses less digits than its factorization.

12878611100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128786125 (or 128786118 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 35.

The spelling of 12878611100 in words is "twelve billion, eight hundred seventy-eight million, six hundred eleven thousand, one hundred".