1270720348880 has 20 divisors (see below), whose sum is σ = 2954424811332. Its totient is φ = 508288139520.

The previous prime is 1270720348879. The next prime is 1270720348901. The reversal of 1270720348880 is 888430270721.

It can be written as a sum of positive squares in 2 ways, for example, as 264101432464 + 1006618916416 = 513908^2 + 1003304^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×1270720348880² (a number of 25 digits) contains 22 as substring.

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, 7942002101 + ... + 7942002260.

Almost surely, 2^{1270720348880} is an apocalyptic number.

1270720348880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1270720348880 is an abundant number, since it is smaller than the sum of its proper divisors (1683704462452).

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

1270720348880 is a wasteful number, since it uses less digits than its factorization.

1270720348880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15884004374 (or 15884004368 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 50.

The spelling of 1270720348880 in words is "one trillion, two hundred seventy billion, seven hundred twenty million, three hundred forty-eight thousand, eight hundred eighty".