12840712788 has 12 divisors (see below), whose sum is σ = 29961663200. Its totient is φ = 4280237592.

The previous prime is 12840712763. The next prime is 12840712793. The reversal of 12840712788 is 88721704821.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

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, 535029688 + ... + 535029711.

Almost surely, 2^12840712788 is an apocalyptic number.

It is an amenable number.

12840712788 is an abundant number, since it is smaller than the sum of its proper divisors (17120950412).

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

12840712788 is a wasteful number, since it uses less digits than its factorization.

12840712788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070059406 (or 1070059404 counting only the distinct ones).

The product of its (nonzero) digits is 401408, while the sum is 48.

The spelling of 12840712788 in words is "twelve billion, eight hundred forty million, seven hundred twelve thousand, seven hundred eighty-eight".