12678552280 has 16 divisors (see below), whose sum is σ = 28526742720. Its totient is φ = 5071420896.

The previous prime is 12678552277. The next prime is 12678552307. The reversal of 12678552280 is 8225587621.

It is a self number, because there is not a number n which added to its sum of digits gives 12678552280.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158481864 + ... + 158481943.

It is an arithmetic number, because the mean of its divisors is an integer number (1782921420).

Almost surely, 2^12678552280 is an apocalyptic number.

12678552280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12678552280 is an abundant number, since it is smaller than the sum of its proper divisors (15848190440).

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

12678552280 is a wasteful number, since it uses less digits than its factorization.

12678552280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316963818 (or 316963814 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 46.

The spelling of 12678552280 in words is "twelve billion, six hundred seventy-eight million, five hundred fifty-two thousand, two hundred eighty".