1270785600000 has 1080 divisors, whose sum is σ = 5335570556316. Its totient is φ = 290304000000.

The previous prime is 1270785599999. The next prime is 1270785600013. The reversal of 1270785600000 is 65870721.

1270785600000 is a `hidden beast` number, since 1 + 27 + 0 + 78 + 560 + 0 + 0 + 0 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 362134354176 + 908651245824 = 601776^2 + 953232^2 .

It is a super-2 number, since 2×1270785600000² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 107 ways as a sum of consecutive naturals, for example, 705599100 + ... + 705600900.

Almost surely, 2^{1270785600000} is an apocalyptic number.

1270785600000 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 1270785600000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2667785278158).

1270785600000 is an abundant number, since it is smaller than the sum of its proper divisors (4064784956316).

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

1270785600000 is an frugal number, since it uses more digits than its factorization.

1270785600000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1864 (or 1818 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The spelling of 1270785600000 in words is "one trillion, two hundred seventy billion, seven hundred eighty-five million, six hundred thousand".