1271841344660 has 96 divisors (see below), whose sum is σ = 2840326594560. Its totient is φ = 477014009472.

The previous prime is 1271841344647. The next prime is 1271841344663. The reversal of 1271841344660 is 664431481721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1271841344663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78389309 + ... + 78405531.

It is an arithmetic number, because the mean of its divisors is an integer number (29586735360).

Almost surely, 2^{1271841344660} is an apocalyptic number.

1271841344660 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 1271841344660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1420163297280).

1271841344660 is an abundant number, since it is smaller than the sum of its proper divisors (1568485249900).

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

1271841344660 is a wasteful number, since it uses less digits than its factorization.

1271841344660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18357 (or 18355 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 1271841344660 in words is "one trillion, two hundred seventy-one billion, eight hundred forty-one million, three hundred forty-four thousand, six hundred sixty".