1276727740000 has 120 divisors (see below), whose sum is σ = 3207772659168. Its totient is φ = 499824960000.

The previous prime is 1276727739977. The next prime is 1276727740003. The reversal of 1276727740000 is 477276721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1276727740003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 260890 + ... + 1619110.

Almost surely, 2^{1276727740000} is an apocalyptic number.

1276727740000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1276727740000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1603886329584).

1276727740000 is an abundant number, since it is smaller than the sum of its proper divisors (1931044919168).

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

1276727740000 is an equidigital number, since it uses as much as digits as its factorization.

1276727740000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358298 (or 1358275 counting only the distinct ones).

The product of its (nonzero) digits is 230496, while the sum is 43.

The spelling of 1276727740000 in words is "one trillion, two hundred seventy-six billion, seven hundred twenty-seven million, seven hundred forty thousand".