12729274000000 has 112 divisors (see below), whose sum is σ = 31698474918390. Its totient is φ = 5091708800000.

The previous prime is 12729273999977. The next prime is 12729274000031. The reversal of 12729274000000 is 47292721.

It is a happy number.

It can be written as a sum of positive squares in 7 ways, for example, as 7572051013696 + 5157222986304 = 2751736^2 + 2270952^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12729274000000.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 1182319 + ... + 5182318.

Almost surely, 2^{12729274000000} is an apocalyptic number.

12729274000000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12729274000000 is an abundant number, since it is smaller than the sum of its proper divisors (18969200918390).

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

12729274000000 is an frugal number, since it uses more digits than its factorization.

12729274000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6364681 (or 6364644 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The spelling of 12729274000000 in words is "twelve trillion, seven hundred twenty-nine billion, two hundred seventy-four million", and thus it is an aban number.